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.
Acreage Calculator
Calculate rectangular acreage from feet, yards, meters, or kilometers and optionally multiply by a price per acre.
Angstrom to nm converter
Convert angstroms to nanometers for atomic spacing, crystal structures, X-ray wavelengths, and nanoscale measurements with exact metric factors.
Area Converter Calculator
Convert nonnegative area values among metric, international-foot-based, acre, hectare, and square-inch units.
Ares to Cents Converter
Convert between ares and land cents using a disclosed cent definition, with square-meter and acre checks.
Ares to hectares converter
Convert ares and hectares for metric land records, farms, cadastral plans, and property listings with square meters and acres shown.
Astronomical Unit Calculator
Convert astronomical units, kilometers, miles, meters, and light-years using the official AU value of 149,597,870,700 meters.
Barometric Pressure Conversion
Convert barometric pressure readings among hPa, millibars, inHg, mmHg, kPa, Pa, bar, atm, and psi for weather, aviation, and lab records.
cc to Grams Converter
Convert cubic centimeters to grams using a water approximation or a density you provide.
cc to Liter Converter
Convert cubic centimeters to liters for engine displacement, tanks, lab batches, dosing volumes, and metric capacity checks using the exact 1,000 cc per liter relationship.
cc to ml Converter
Convert cubic centimeters to milliliters exactly, with cc-first guidance for syringes, engine displacement, lab glassware, liters, and US fluid ounces.
CCF to Gallons Conversion
Convert water-bill CCF to US gallons from the exact cubic-inch definition, with cubic feet, cubic meters, liters, examples, and billing cautions.
CCF to Therms Calculator
Convert natural gas CCF to therms with an adjustable therms-per-CCF factor, plus BTU, kWh, and cubic-foot equivalents.
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.
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.
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.
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.
Cubic Centimeters to Fluid Ounces Converter
Convert cubic centimeters to U.S. fluid ounces and show metric and imperial comparisons.
Cubic Feet Calculator
Calculate a rectangular volume in cubic feet and show exact dimensional metric and U.S.-gallon equivalents.
Cubic Feet to Cubic Meters Converter
Convert cubic feet to cubic meters using the exact cubed international-foot definition.
Cubic Feet to Pounds Calculator
Convert cubic feet to pounds when you know density in pounds per cubic foot.
Cubic Feet to U.S. Gallons Converter
Convert cubic feet to U.S. liquid gallons using the exact 1,728/231 dimensional ratio.
Cubic Inches to Gallons Converter
Convert cubic inches to US liquid gallons for small tanks, engine bays, appliance reservoirs, aquariums, and custom containers using the exact 231 in³ definition.
Cubic Meter Calculator
Calculate rectangular cubic meters and show exact dimensional liters, cubic feet, and U.S.-gallon equivalents.
Cubic Meter to Metric Tonne Calculator
Convert cubic meters to metric tonnes when you know density in tonnes per cubic meter.
Cubic Yards to Short Tons Calculator
Convert cubic yards to US short tons when you know bulk density in short tons per cubic yard.
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.
Distance Converter
Convert travel, route, map, and navigation distances among kilometers, miles, meters, and feet with formulas, examples, and route-focused guidance.
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.
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.
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.
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.
Gallon Calculator
Convert US liquid gallons to liters, quarts, pints, cups, fluid ounces, and cubic feet for water, fuel, recipes, appliances, and storage planning.
Gallons to Cubic Feet Converter
Convert US liquid gallons to cubic feet for tanks, aquariums, drums, sumps, planters, and storage volumes using 7.48051948051948 gal per ft³.
Hectares to Acres Converter
Convert hectares to acres for metric land records, forestry plans, and agriculture reports that need acre equivalents.
Height Converter
Convert human height between centimeters, meters, total inches, total feet, and feet plus inches with exact unit math and practical rounding guidance.
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.
Imperial Calculator
Convert imperial length units among inches, feet, yards, and miles, with metric equivalents, supported factors, examples, and links to focused length converters.
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.
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.
Inch Converter
Convert inches to millimeters, centimeters, meters, feet, and yards with exact inch definitions and practical imperial length guidance.
Inch to Meter Calculator
Convert inches to meters for engineering drawings, long product dimensions, construction notes, lab records, and international specifications.
Inch-lbs to Nm converter
Convert inch-pounds-force to newton-meters for small torque wrench settings, bicycle parts, electronics hardware, and shop specifications.
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.
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.
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.
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.
Kilometer Calculator
Convert kilometers to meters, centimeters, millimeters, miles, feet, and yards with map, race, and metric-prefix context.
Kilometer to Meter Converter
Convert kilometers to meters with exact metric factors, SI prefix context, formulas, examples, reference table, and common decimal-place checks.