Conversion tool map
Length & area
Distance, height, land, and surface-area units.
Choose the tool whose inputs and output match your task. Check each calculator’s assumptions and limitations before using its result.
Latest update:
These tools cover the full length arc: object dimensions, route distances, and land area. Start with the length converter for object and dimension measurements in meters, feet, inches, and yards. For travel, races, and map routes, the distance converter frames the same units as geography. When a measurement mixes feet and inches, the feet and inches calculator reduces it to total inches and shows decimal feet and meters. Land, lots, and floor plans belong to the area converter, which works in square feet, acres, hectares, and square meters. Find the rest of the measurement family in the Conversion collection.
For thickness measurements, the micron to mil converter converts between micrometres and mils. One mil is 0.001 inch, not one millimetre.
79 of 79 calculators
Length & area79 calculators
Acreage Calculator
Calculate rectangular acreage from feet, yards, meters, or kilometers and optionally multiply by a price per acre.
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Verified
Angstrom to nm converter
Convert angstroms to nanometers for atomic spacing, crystal structures, X-ray wavelengths, and nanoscale measurements with exact metric factors.
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Area Converter Calculator
Convert nonnegative area values among metric, international-foot-based, acre, hectare, and square-inch units.
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Ares to Cents Converter
Convert between ares and land cents using a disclosed cent definition, with square-meter and acre checks.
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Ares to hectares converter
Convert ares and hectares for metric land records, farms, cadastral plans, and property listings with square meters and acres shown.
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Astronomical Unit Calculator
Convert astronomical units, kilometers, miles, meters, and light-years using the official AU value of 149,597,870,700 meters.
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cc to Grams Converter
Convert cubic centimeters to grams using a water approximation or a density you provide.
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Verified
CCF to Therms Calculator
Convert natural gas CCF to therms with an adjustable therms-per-CCF factor, plus BTU, kWh, and cubic-foot equivalents.
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Verified
CGS System of Units Converter
Convert core CGS mechanical units to SI units and back, with factors for centimeters, grams, gals, dynes, ergs, baryes, poise, and stokes.
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Verified
cm Height Conversion Calculator
Convert centimeters to feet and inches for human height records, with exact inch math, nearest whole-inch wording, height examples, and rounding guidance.
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cm to ft in. converter
Convert centimeters to mixed feet and inches for general lengths, with adjustable inch decimals, exact 2.54 cm per inch math, and practical examples.
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Conversion Calculator
Convert temperature, length, area, volume, and weight units in one general calculator, with base-unit math and notes for metric, imperial, and US customary measurements.
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Verified
Cubic Feet to Pounds Calculator
Convert cubic feet to pounds using an entered density in lb/ft³, with results in pounds, short tons, and kilograms.
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Cubic Meter to Metric Tonne Calculator
Convert cubic meters to metric tonnes when you know density in tonnes per cubic meter.
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Cubic Yards to Short Tons Calculator
Convert cubic yards to US short tons when you know bulk density in short tons per cubic yard.
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Decimeter to Meter Converter
Convert decimeters to meters and meters to decimeters with exact SI prefix logic, formulas, examples, reference factors, and decimal-place guidance.
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Distance Converter
Convert travel, route, map, and navigation distances among kilometers, miles, meters, and feet with formulas, examples, and route-focused guidance.
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Feet and Inches Calculator
Convert mixed feet and inches to decimal feet, total inches, meters, and normalized ft-in notation with exact 12-inch and 2.54-cm math.
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Feet per Second to Meters per Second Calculator
Convert feet per second to meters per second for physics, ballistics, sports timing, robotics, and engineering with exact-foot math and rounded results.
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Verified
Fuel Economy Converter Calculator
Convert MPG, km/L, and L/100km while understanding why fuel economy and fuel consumption are reciprocal measures, not simple linear units.
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Gaj to Square Yard Converter
Convert gaj and square yards for South Asian land listings, with square feet and square meters, regional cautions, and exact worked examples.
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Hectares to Acres Converter
Convert hectares to acres for metric land records, forestry plans, and agriculture reports that need acre equivalents.
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Height Converter
Convert human height between centimeters, meters, total inches, total feet, and feet plus inches with exact unit math and practical rounding guidance.
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Height in Inches Calculator
Convert human height from feet and inches or centimeters to total inches, with centimeters, meters, decimal feet, examples, and rounding cautions.
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Imperial Calculator
Convert imperial length units among inches, feet, yards, and miles, with metric equivalents, supported factors, examples, and links to focused length converters.
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Imperial to Metric Conversion
Convert common imperial and US customary measurements to metric values, including inches to centimeters, feet to meters, pounds to kilograms, and gallons to liters.
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Verified
in to cm Converter
Convert inches to centimeters for U.S. measurements, lab notes, international forms, patterns, and technical drawings using the exact 2.54 cm per inch factor.
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Inch Converter
Convert inches to millimeters, centimeters, meters, feet, and yards with exact inch definitions and practical imperial length guidance.
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Inch to Meter Calculator
Convert inches to meters for engineering drawings, long product dimensions, construction notes, lab records, and international specifications.
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Inch-lbs to Nm converter
Convert inch-pounds-force to newton-meters for small torque wrench settings, bicycle parts, electronics hardware, and shop specifications.
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Inch-Pounds to Foot-Pounds Converter
Convert inch-pounds to foot-pounds and back with the exact 12 to 1 torque relationship for shop, automotive, and engineering notes.
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Verified
Inches to Fraction Calculator
Convert decimal inches to the nearest ruler fraction from halves through 1/128 inch, with reduced fractions, rounded decimal value, and error.
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Verified
Inches to Yard Conversion
Convert inches to yards or yards to inches with the exact 36 inches per yard rule, fabric examples, and imperial ladder guidance.
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Verified
Katha to Square Feet Converter
Convert katha to square feet using the calculator's regional factors for Bangladesh, West Bengal, Bihar, Nepal, Assam, Saran, or a custom local value.
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Verified
Kilometer Calculator
Convert kilometers to meters, centimeters, millimeters, miles, feet, and yards with map, race, and metric-prefix context.
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Verified
Kilometer to Meter Converter
Convert kilometers to meters with exact metric factors, SI prefix context, formulas, examples, reference table, and common decimal-place checks.
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km to Feet Conversion
Convert kilometers to feet for elevation, altitude, trail profiles, aviation notes, and long-distance height references using a clear formula and examples.
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Knots to kph Converter
Convert knots to kilometers per hour for aviation, marine navigation, wind forecasts, and weather reports using the nautical-mile definition.
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Knots to MPH Calculator
Convert knots to miles per hour for boating, aviation, wind, and everyday road-speed comparisons with nautical-mile context and rounded MPH output.
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Verified
Land Area Calculator
Calculate rectangular land area from length and width, then compare acres, hectares, square feet, and square meters for land records.
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Verified
Land Cents to Square Meters Converter
Convert land cents to square meters using the disclosed definition 1 cent = 1/100 international acre.
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Verified
Lbs to PSI Converter
Calculate PSI from pounds-force and contact area in square inches or square feet, with psf and kPa outputs for load pressure checks.
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Verified
Length Converter
Convert object dimensions among meters, feet, inches, and yards with a multi-unit selector, formulas, comparison table, and links to focused length calculators.
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Verified
Light Year Conversion
Convert light-years to kilometers, meters, miles, astronomical units, and parsecs for astronomy problems and scale comparisons.
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Verified
Lot Size to Acres Calculator
Convert lot size to acres from known square feet or from length and width in feet or meters, with hectares and square meters included.
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Lot Size to Square Feet Calculator
Calculate lot size in square feet from length and width in feet, yards, or meters, with acres, square meters, perimeter, and value.
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Verified
Measurement Converter
Convert common length, area, mass, volume, time, and speed units on one broad hub using defined factors, including the exact 1,852-metre nautical mile.
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Verified
Meter Converter
Convert meters into metric and imperial length units with exact SI context, formulas, examples, reference factors, and practical scale notes.
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Verified
Meters to Feet Converter
Convert meters to feet for metric source measurements in sports, architecture, travel, mapping, and international specifications.
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Metric Converter
Convert between metric length, mass, and volume units using decimal SI-style prefixes, base-unit factors, and worked examples for meters, grams, and liters.
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Verified
Metric to Imperial Converter
Convert metric inputs into common imperial and US customary readouts, including meters to feet and inches, kilograms to pounds and ounces, and liters to US gallons.
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Metric to Inches Calculator
Convert metric product dimensions from millimeters, centimeters, meters, or kilometers into decimal inches, feet and inches, feet, and meters.
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Metric to SAE Calculator
Convert millimeter sizes to the nearest 1/16- or 1/32-inch fraction and compare against a disclosed fixed list of inch sizes.
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Micrometer Converter
Convert micrometers or microns to nanometers, millimeters, centimeters, meters, mils, and inches for precision measurement.
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micron to mil Conversion Calculator
Convert microns to mils or mils to microns for coating, film, liner, packaging, and precision thickness specifications.
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mil Conversion
Convert mils, also called thou, to microns, millimeters, inches, and centimeters for films, liners, coatings, foil, and machining notes.
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mil to inch Conversion
Convert mils to inches or inches to mils with the exact thousandth-of-an-inch relationship used for films, coatings, shims, and manufacturing tolerances.
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mil to mm Conversion
Convert mils to millimeters or millimeters to mils with the exact 0.0254 mm per mil factor used for material thickness and precision specifications.
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Mile Conversion Calculator
Convert statute miles to kilometers, meters, feet, yards, and nautical miles with exact imperial ladder factors and route examples.
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Miles to Kilometers Calculator
Convert statute miles to kilometers using the exact international relationship 1 mi = 1.609344 km.
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Verified
Millimeter Calculator
Convert millimeters to centimeters, meters, kilometers, inches, and feet with engineering, product-size, and tolerance guidance.
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Verified
Newton Meter Calculator
Convert a newton-meter torque value to foot-pounds, inch-pounds, kilogram-force meters, and kilogram-force centimeters with practical fastener context.
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Verified
nm converter
Convert nanometers to meters, micrometers, millimeters, and angstroms for optics, semiconductors, microscopy, and nanoscale materials.
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nm to m Converter
Convert nanometers to meters or meters to nanometers with exact SI prefix factors, scientific notation guidance, and nanoscale examples.
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Verified
Pixels to Inches Converter
Convert pixels to inches or inches to pixels using a positive pixels-per-inch value supplied by the user.
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Verified
PSI to GPM Calculator
Estimate water flow in gallons per minute from an absolute pressure drop and circular opening diameter using an ideal Bernoulli relationship.
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Verified
Square Centimeters To Square Millimeters Converter
Convert square centimeters to square millimeters and back with the exact metric area factor of 100 square millimeters per square centimeter.
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Verified
Square Feet Converter
Convert square feet to square meters, square yards, square inches, acres, and hectares with squared-factor guidance for rooms, lots, and materials.
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Verified
Square Feet to Acres Calculator
Convert square feet to acres for lots, zoning, surveys, site plans, and land comparisons using 43,560 sq ft per acre.
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Verified
Square Feet to Square Meters Calculator
Convert square feet to square meters with the exact squared foot-to-meter factor, examples for floor plans and real estate, and a reference table.
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Verified
Square Inch to Square Foot Converter
Convert square inches to square feet, or square feet back to square inches, using the squared 12-inch foot relationship for small surfaces.
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Square Meter Converter
Convert square meters into square feet, square yards, square centimeters, acres, and hectares with squared-factor explanations and land-area examples.
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Square Miles to Square km Converter
Convert square miles to square kilometers or reverse the direction with map-scale examples, acre context, and the squared mile-to-kilometer rule.
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Square Yard Converter
Convert square yards to square feet, square meters, square inches, and acres with squared yard factors for flooring, turf, fabric, and land estimates.
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Verified
Torque Converter: Nm to Ft-Lbs, Newton Meters to Foot Pounds
Convert torque between N·m, kgf·m, ft-lb, and in-lb with exact factors, worked examples, and fastener, tool, and engineering context.
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Verified
Weird Units Converter
Convert length among meters and memorable novelty references such as football fields, buses, Olympic pools, bananas, and the Eiffel Tower.
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Verified
Yard Conversion
Convert yards to feet, inches, meters, centimeters, and miles with exact yard definitions, formulas, examples, reference factors, and scale checks.
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Verified
Yard to Mile Converter
Convert yards to miles and miles to yards with the exact 1,760-yard international mile, plus feet equivalents for field checks.
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Verified
Yards to Meters Conversion
Convert yards to meters for sports fields, fabric lengths, landscaping, range notes, and site measurements using the exact 0.9144 m per yard factor.
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Verified
Acreage Calculator
Calculate rectangular acreage from feet, yards, meters, or kilometers and optionally multiply by a price per acre.
Updated
Verified
Angstrom to nm converter
Convert angstroms to nanometers for atomic spacing, crystal structures, X-ray wavelengths, and nanoscale measurements with exact metric factors.
Updated
Verified
Area Converter Calculator
Convert nonnegative area values among metric, international-foot-based, acre, hectare, and square-inch units.
Updated
Verified
Ares to Cents Converter
Convert between ares and land cents using a disclosed cent definition, with square-meter and acre checks.
Updated
Verified
Ares to hectares converter
Convert ares and hectares for metric land records, farms, cadastral plans, and property listings with square meters and acres shown.
Updated
Verified
Astronomical Unit Calculator
Convert astronomical units, kilometers, miles, meters, and light-years using the official AU value of 149,597,870,700 meters.
Updated
Verified
cc to Grams Converter
Convert cubic centimeters to grams using a water approximation or a density you provide.
Updated
Verified
CCF to Therms Calculator
Convert natural gas CCF to therms with an adjustable therms-per-CCF factor, plus BTU, kWh, and cubic-foot equivalents.
Updated
Verified
CGS System of Units Converter
Convert core CGS mechanical units to SI units and back, with factors for centimeters, grams, gals, dynes, ergs, baryes, poise, and stokes.
Updated
Verified
cm Height Conversion Calculator
Convert centimeters to feet and inches for human height records, with exact inch math, nearest whole-inch wording, height examples, and rounding guidance.
Updated
Verified
cm to ft in. converter
Convert centimeters to mixed feet and inches for general lengths, with adjustable inch decimals, exact 2.54 cm per inch math, and practical examples.
Updated
Verified
Conversion Calculator
Convert temperature, length, area, volume, and weight units in one general calculator, with base-unit math and notes for metric, imperial, and US customary measurements.
Updated
Verified
Cubic Feet to Pounds Calculator
Convert cubic feet to pounds using an entered density in lb/ft³, with results in pounds, short tons, and kilograms.
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Verified
Cubic Meter to Metric Tonne Calculator
Convert cubic meters to metric tonnes when you know density in tonnes per cubic meter.
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Verified
Cubic Yards to Short Tons Calculator
Convert cubic yards to US short tons when you know bulk density in short tons per cubic yard.
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Verified
Decimeter to Meter Converter
Convert decimeters to meters and meters to decimeters with exact SI prefix logic, formulas, examples, reference factors, and decimal-place guidance.
Updated
Verified
Distance Converter
Convert travel, route, map, and navigation distances among kilometers, miles, meters, and feet with formulas, examples, and route-focused guidance.
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Verified
Feet and Inches Calculator
Convert mixed feet and inches to decimal feet, total inches, meters, and normalized ft-in notation with exact 12-inch and 2.54-cm math.
Updated
Verified
Feet per Second to Meters per Second Calculator
Convert feet per second to meters per second for physics, ballistics, sports timing, robotics, and engineering with exact-foot math and rounded results.
Updated
Verified
Fuel Economy Converter Calculator
Convert MPG, km/L, and L/100km while understanding why fuel economy and fuel consumption are reciprocal measures, not simple linear units.
Updated
Verified
Gaj to Square Yard Converter
Convert gaj and square yards for South Asian land listings, with square feet and square meters, regional cautions, and exact worked examples.
Updated
Verified
Hectares to Acres Converter
Convert hectares to acres for metric land records, forestry plans, and agriculture reports that need acre equivalents.
Updated
Verified
Height Converter
Convert human height between centimeters, meters, total inches, total feet, and feet plus inches with exact unit math and practical rounding guidance.
Updated
Verified
Height in Inches Calculator
Convert human height from feet and inches or centimeters to total inches, with centimeters, meters, decimal feet, examples, and rounding cautions.
Updated
Verified
Imperial Calculator
Convert imperial length units among inches, feet, yards, and miles, with metric equivalents, supported factors, examples, and links to focused length converters.
Updated
Verified
Imperial to Metric Conversion
Convert common imperial and US customary measurements to metric values, including inches to centimeters, feet to meters, pounds to kilograms, and gallons to liters.
Updated
Verified
in to cm Converter
Convert inches to centimeters for U.S. measurements, lab notes, international forms, patterns, and technical drawings using the exact 2.54 cm per inch factor.
Updated
Verified
Inch Converter
Convert inches to millimeters, centimeters, meters, feet, and yards with exact inch definitions and practical imperial length guidance.
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Verified
Inch to Meter Calculator
Convert inches to meters for engineering drawings, long product dimensions, construction notes, lab records, and international specifications.
Updated
Verified
Inch-lbs to Nm converter
Convert inch-pounds-force to newton-meters for small torque wrench settings, bicycle parts, electronics hardware, and shop specifications.
Updated
Verified
Inch-Pounds to Foot-Pounds Converter
Convert inch-pounds to foot-pounds and back with the exact 12 to 1 torque relationship for shop, automotive, and engineering notes.
Updated
Verified
Inches to Fraction Calculator
Convert decimal inches to the nearest ruler fraction from halves through 1/128 inch, with reduced fractions, rounded decimal value, and error.
Updated
Verified
Inches to Yard Conversion
Convert inches to yards or yards to inches with the exact 36 inches per yard rule, fabric examples, and imperial ladder guidance.
Updated
Verified
Katha to Square Feet Converter
Convert katha to square feet using the calculator's regional factors for Bangladesh, West Bengal, Bihar, Nepal, Assam, Saran, or a custom local value.
Updated
Verified
Kilometer Calculator
Convert kilometers to meters, centimeters, millimeters, miles, feet, and yards with map, race, and metric-prefix context.
Updated
Verified
Kilometer to Meter Converter
Convert kilometers to meters with exact metric factors, SI prefix context, formulas, examples, reference table, and common decimal-place checks.
Updated
Verified
km to Feet Conversion
Convert kilometers to feet for elevation, altitude, trail profiles, aviation notes, and long-distance height references using a clear formula and examples.
Updated
Verified
Knots to kph Converter
Convert knots to kilometers per hour for aviation, marine navigation, wind forecasts, and weather reports using the nautical-mile definition.
Updated
Verified
Knots to MPH Calculator
Convert knots to miles per hour for boating, aviation, wind, and everyday road-speed comparisons with nautical-mile context and rounded MPH output.
Updated
Verified
Land Area Calculator
Calculate rectangular land area from length and width, then compare acres, hectares, square feet, and square meters for land records.
Updated
Verified
Land Cents to Square Meters Converter
Convert land cents to square meters using the disclosed definition 1 cent = 1/100 international acre.
Updated
Verified
Lbs to PSI Converter
Calculate PSI from pounds-force and contact area in square inches or square feet, with psf and kPa outputs for load pressure checks.
Updated
Verified
Length Converter
Convert object dimensions among meters, feet, inches, and yards with a multi-unit selector, formulas, comparison table, and links to focused length calculators.
Updated
Verified
Light Year Conversion
Convert light-years to kilometers, meters, miles, astronomical units, and parsecs for astronomy problems and scale comparisons.
Updated
Verified
Lot Size to Acres Calculator
Convert lot size to acres from known square feet or from length and width in feet or meters, with hectares and square meters included.
Updated
Verified
Lot Size to Square Feet Calculator
Calculate lot size in square feet from length and width in feet, yards, or meters, with acres, square meters, perimeter, and value.
Updated
Verified
Measurement Converter
Convert common length, area, mass, volume, time, and speed units on one broad hub using defined factors, including the exact 1,852-metre nautical mile.
Updated
Verified
Meter Converter
Convert meters into metric and imperial length units with exact SI context, formulas, examples, reference factors, and practical scale notes.
Updated
Verified
Meters to Feet Converter
Convert meters to feet for metric source measurements in sports, architecture, travel, mapping, and international specifications.
Updated
Verified
Metric Converter
Convert between metric length, mass, and volume units using decimal SI-style prefixes, base-unit factors, and worked examples for meters, grams, and liters.
Updated
Verified
Metric to Imperial Converter
Convert metric inputs into common imperial and US customary readouts, including meters to feet and inches, kilograms to pounds and ounces, and liters to US gallons.
Updated
Verified
Metric to Inches Calculator
Convert metric product dimensions from millimeters, centimeters, meters, or kilometers into decimal inches, feet and inches, feet, and meters.
Updated
Verified
Metric to SAE Calculator
Convert millimeter sizes to the nearest 1/16- or 1/32-inch fraction and compare against a disclosed fixed list of inch sizes.
Updated
Verified
Micrometer Converter
Convert micrometers or microns to nanometers, millimeters, centimeters, meters, mils, and inches for precision measurement.
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Verified
micron to mil Conversion Calculator
Convert microns to mils or mils to microns for coating, film, liner, packaging, and precision thickness specifications.
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Verified
mil Conversion
Convert mils, also called thou, to microns, millimeters, inches, and centimeters for films, liners, coatings, foil, and machining notes.
Updated
Verified
mil to inch Conversion
Convert mils to inches or inches to mils with the exact thousandth-of-an-inch relationship used for films, coatings, shims, and manufacturing tolerances.
Updated
Verified
mil to mm Conversion
Convert mils to millimeters or millimeters to mils with the exact 0.0254 mm per mil factor used for material thickness and precision specifications.
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Verified
Mile Conversion Calculator
Convert statute miles to kilometers, meters, feet, yards, and nautical miles with exact imperial ladder factors and route examples.
Updated
Verified
Miles to Kilometers Calculator
Convert statute miles to kilometers using the exact international relationship 1 mi = 1.609344 km.
Updated
Verified
Millimeter Calculator
Convert millimeters to centimeters, meters, kilometers, inches, and feet with engineering, product-size, and tolerance guidance.
Updated
Verified
Newton Meter Calculator
Convert a newton-meter torque value to foot-pounds, inch-pounds, kilogram-force meters, and kilogram-force centimeters with practical fastener context.
Updated
Verified
nm converter
Convert nanometers to meters, micrometers, millimeters, and angstroms for optics, semiconductors, microscopy, and nanoscale materials.
Updated
Verified
nm to m Converter
Convert nanometers to meters or meters to nanometers with exact SI prefix factors, scientific notation guidance, and nanoscale examples.
Updated
Verified
Pixels to Inches Converter
Convert pixels to inches or inches to pixels using a positive pixels-per-inch value supplied by the user.
Updated
Verified
PSI to GPM Calculator
Estimate water flow in gallons per minute from an absolute pressure drop and circular opening diameter using an ideal Bernoulli relationship.
Updated
Verified
Square Centimeters To Square Millimeters Converter
Convert square centimeters to square millimeters and back with the exact metric area factor of 100 square millimeters per square centimeter.
Updated
Verified
Square Feet Converter
Convert square feet to square meters, square yards, square inches, acres, and hectares with squared-factor guidance for rooms, lots, and materials.
Updated
Verified
Square Feet to Acres Calculator
Convert square feet to acres for lots, zoning, surveys, site plans, and land comparisons using 43,560 sq ft per acre.
Updated
Verified
Square Feet to Square Meters Calculator
Convert square feet to square meters with the exact squared foot-to-meter factor, examples for floor plans and real estate, and a reference table.
Updated
Verified
Square Inch to Square Foot Converter
Convert square inches to square feet, or square feet back to square inches, using the squared 12-inch foot relationship for small surfaces.
Updated
Verified
Square Meter Converter
Convert square meters into square feet, square yards, square centimeters, acres, and hectares with squared-factor explanations and land-area examples.
Updated
Verified
Square Miles to Square km Converter
Convert square miles to square kilometers or reverse the direction with map-scale examples, acre context, and the squared mile-to-kilometer rule.
Updated
Verified
Square Yard Converter
Convert square yards to square feet, square meters, square inches, and acres with squared yard factors for flooring, turf, fabric, and land estimates.
Updated
Verified
Torque Converter: Nm to Ft-Lbs, Newton Meters to Foot Pounds
Convert torque between N·m, kgf·m, ft-lb, and in-lb with exact factors, worked examples, and fastener, tool, and engineering context.
Updated
Verified
Weird Units Converter
Convert length among meters and memorable novelty references such as football fields, buses, Olympic pools, bananas, and the Eiffel Tower.
Updated
Verified
Yard Conversion
Convert yards to feet, inches, meters, centimeters, and miles with exact yard definitions, formulas, examples, reference factors, and scale checks.
Updated
Verified
Yard to Mile Converter
Convert yards to miles and miles to yards with the exact 1,760-yard international mile, plus feet equivalents for field checks.
Updated
Verified
Yards to Meters Conversion
Convert yards to meters for sports fields, fabric lengths, landscaping, range notes, and site measurements using the exact 0.9144 m per yard factor.
Updated
Verified
Frequently asked questions
- How many kilometers are in one mile?
- One international statute mile is exactly 1.609344 kilometers. The calculator retains that factor and displays up to 12 decimal places, without adding measurement precision that was not present in the input.
- Why do race organizers list both miles and kilometers?
- Running events often attract local and international participants. A 5K or 10K is metric by tradition, while many training plans in the United States use miles. Showing both units keeps pacing, splits, and course descriptions understandable without changing the actual measured route.
- Can I use this for speed-limit signs?
- Yes, but remember that this page converts distance, not speed. A road sign marked in miles can be converted to kilometers for map comparison. For miles per hour to kilometers per hour, use a speed converter because the time unit matters too.
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