Conversion tool map
Mass & weight
Metric, imperial, and specialized mass 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 converters move weight and mass between metric and customary units for body weight, shipping, gym plates, and small doses. Start with the kg to lbs converter when your source is metric and you need pounds. If a weigh-in is written in stone, the stone to kg converter reads it into kilograms, and the pounds to stone converter does the reverse for UK body-weight notes. For tiny quantities on supplement and lab labels, the mcg to mg converter shifts values along the metric scale without changing the amount. Choose the tool by the unit you already have. More measurement tools live in the Conversion collection.
16 of 16 calculators
Mass & weight16 calculators
Decagram to gram converter
Convert decagrams to grams or grams to decagrams with the exact metric factor 1 dag = 10 g, plus food, classroom, and lab notation guidance.
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Verified
Density Converter Calculator (kg/m³, g/cm³, lb/ft³)
Convert density between kg/m³, g/cm³, and lb/ft³ with exact definition-based factors in a free density converter calculator for materials, fluids, and soils.
Updated
Verified
Force Converter
Convert force among newtons, pound-force, and kilogram-force using the pound definition and standard gravity.
Updated
Verified
g to lbs Converter
Convert grams to pounds for food, nutrition, postage, and small package weights using the calculator's 1 lb = 453.59237 g factor.
Updated
Verified
Grams To Calories Calculator
Convert grams of protein, carbohydrate, and fat to food Calories using 4, 4, and 9 kcal per gram, or use a custom kcal per gram value.
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Verified
kg to lbs Converter
Convert kilograms to pounds for body weight, gym plates, luggage, freight, and metric records using the calculator's 1 kg = 2.2046226218487757 lb factor.
Updated
Verified
kg to ounce converter
Convert kilograms to weight ounces for metric product specs, kitchen scales, retail packs, and shipping notes using 1 kg = 35.27396194958041 oz.
Updated
Verified
kg to Stones Converter
Convert kilograms to decimal stones and stone plus pounds with metric-first explanations, conversion details, examples, and UK body-weight context.
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Verified
Lbs to Newtons Converter
Convert pound-force to newtons and newtons to pound-force for force, load, spring, fastener, and mechanics calculations.
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Verified
mcg to mg Converter
Convert micrograms to milligrams using the exact SI relationship 1 mg = 1000 mcg, with dosing cautions, examples, and reference tables.
Updated
Verified
mg to lbs Converter
Convert milligrams to pounds with decimal and scientific notation, plus ounces and grams for lab samples, ingredients, materials, and tiny package weights.
Updated
Verified
Pounds and Ounces Calculator
This calculator combines nonnegative avoirdupois pounds and ounces into total ounces. It also reports decimal pounds and equivalent metric mass.
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Verified
Pounds to Stone Converter
Convert pounds to stone with the exact 14 lb per stone factor, canonical lb-to-st guidance, decimal-stone examples, and UK body-weight context.
Updated
Verified
Stone to kg Converter
Convert stone to kilograms with a body-weight-focused guide, exact formulas, stone-and-pound context, examples, and common UK and Ireland usage notes.
Updated
Verified
Stone to lbs converter
Convert stone to pounds with the exact 14 lb per stone relationship, plus kilogram context, body-weight examples, and stone-and-pound reading tips.
Updated
Verified
Weight Converter
Convert among kilograms, pounds, ounces, and grams with a clear weight and mass reference, exact supported factors, examples, pitfalls, and links to focused unit converters.
Updated
Verified
Decagram to gram converter
Convert decagrams to grams or grams to decagrams with the exact metric factor 1 dag = 10 g, plus food, classroom, and lab notation guidance.
Updated
Verified
Density Converter Calculator (kg/m³, g/cm³, lb/ft³)
Convert density between kg/m³, g/cm³, and lb/ft³ with exact definition-based factors in a free density converter calculator for materials, fluids, and soils.
Updated
Verified
Force Converter
Convert force among newtons, pound-force, and kilogram-force using the pound definition and standard gravity.
Updated
Verified
g to lbs Converter
Convert grams to pounds for food, nutrition, postage, and small package weights using the calculator's 1 lb = 453.59237 g factor.
Updated
Verified
Grams To Calories Calculator
Convert grams of protein, carbohydrate, and fat to food Calories using 4, 4, and 9 kcal per gram, or use a custom kcal per gram value.
Updated
Verified
kg to lbs Converter
Convert kilograms to pounds for body weight, gym plates, luggage, freight, and metric records using the calculator's 1 kg = 2.2046226218487757 lb factor.
Updated
Verified
kg to ounce converter
Convert kilograms to weight ounces for metric product specs, kitchen scales, retail packs, and shipping notes using 1 kg = 35.27396194958041 oz.
Updated
Verified
kg to Stones Converter
Convert kilograms to decimal stones and stone plus pounds with metric-first explanations, conversion details, examples, and UK body-weight context.
Updated
Verified
Lbs to Newtons Converter
Convert pound-force to newtons and newtons to pound-force for force, load, spring, fastener, and mechanics calculations.
Updated
Verified
mcg to mg Converter
Convert micrograms to milligrams using the exact SI relationship 1 mg = 1000 mcg, with dosing cautions, examples, and reference tables.
Updated
Verified
mg to lbs Converter
Convert milligrams to pounds with decimal and scientific notation, plus ounces and grams for lab samples, ingredients, materials, and tiny package weights.
Updated
Verified
Pounds and Ounces Calculator
This calculator combines nonnegative avoirdupois pounds and ounces into total ounces. It also reports decimal pounds and equivalent metric mass.
Updated
Verified
Pounds to Stone Converter
Convert pounds to stone with the exact 14 lb per stone factor, canonical lb-to-st guidance, decimal-stone examples, and UK body-weight context.
Updated
Verified
Stone to kg Converter
Convert stone to kilograms with a body-weight-focused guide, exact formulas, stone-and-pound context, examples, and common UK and Ireland usage notes.
Updated
Verified
Stone to lbs converter
Convert stone to pounds with the exact 14 lb per stone relationship, plus kilogram context, body-weight examples, and stone-and-pound reading tips.
Updated
Verified
Weight Converter
Convert among kilograms, pounds, ounces, and grams with a clear weight and mass reference, exact supported factors, examples, pitfalls, and links to focused unit converters.
Updated
Verified
Frequently asked questions
- How many ounces are in 1 kilogram on this calculator?
- One kilogram is shown as 35.27396194958041 avoirdupois ounces. That is the everyday weight ounce used for groceries, parcels, and US customary weight labels. The calculator also shows pounds and grams so you can compare the ounce result with more familiar larger and metric units.
- How do I convert kilograms to ounces?
- Enter the kilogram value and multiply by 35.27396194958041. For example, 2.5 kg becomes 88.1849 oz in this calculator. Because the page is kilogram-first, it is best for metric source weights from product sheets, ingredient scales, lab samples, or international shipping records.
- Is an ounce here the same as a fluid ounce?
- No. This page converts mass, not volume. The ounce here is an avoirdupois weight ounce. A fluid ounce measures volume, so converting a kilogram of oil, flour, water, or honey into fluid ounces would require density and cannot be done by this mass converter alone.
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