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Weight and Mass Converter

Convert common weight and mass units for body weight, shipping, cooking, science, and fitness tracking.

Result

Popular weight and mass conversions

Choose a weight and mass conversion

Kg to Lbspounds = kilograms x 2.20462262185 Lbs to Kgkilograms = pounds / 2.20462262185 Grams to Ouncesounces = grams / 28.349523125 Ounces to Gramsgrams = ounces x 28.349523125 Lbs to Ouncesounces = pounds x 16 Ounces to Lbspounds = ounces / 16 Stone to Kgkilograms = stone x 6.35029318 Kg to Stonestone = kilograms / 6.35029318 Metric Tons to Lbspounds = metric tons x 2,204.62262185 Lbs to Metric Tonsmetric tons = pounds / 2,204.62262185 Kg to Gramsgrams = kilograms x 1,000 Kg to Ouncesounces = kilograms x 35.2739619496

What is the weight and mass converter?

The weight and mass converter is a collection of calculators for changing one weight and mass unit into another. Convert common weight and mass units for body weight, shipping, cooking, science, and fitness tracking.

Weight and mass conversions are common for body weight, shipping labels, recipes, gym tracking, lab measurements, and comparing metric and US customary units.

Available weight and mass units

This category includes the following units:

Common weight and mass use cases

Use this category when the same measurement appears in different unit systems, data sheets, calculators, reports, or regional conventions.

These short unit notes help readers choose the right starting unit before opening a specific conversion page.

Kilogram (kg)

A kilogram is the base metric unit of mass. It is used for body weight, shipping weight, groceries, science, and international product specifications.

Browse kg conversions

Pound (lb)

A pound is a US customary and imperial weight unit. It is common for body weight, food packaging, shipping labels, and fitness measurements.

Browse lbs conversions

Gram (g)

A gram is a metric mass unit equal to one thousandth of a kilogram. It is common in cooking, nutrition labels, medicine, and laboratory work.

Browse grams conversions

Ounce (oz)

An ounce is a US customary and imperial weight unit. It is used for small food quantities, mailing weight, recipes, and precious metals.

Browse ounces conversions

Stone (st)

Stone (st) is a weight and mass unit.

Browse stone conversions

Metric Ton (t)

Metric Ton (t) is a weight and mass unit.

Browse metric-tons conversions

Common weight and mass conversion mistakes

Most wrong answers come from mixing unit systems, rounding too early, or choosing a unit that looks similar but means something different.

Start with one of these common weight and mass conversions:

Browse weight and mass conversions by starting unit

Use these grouped links when you know the unit you are starting from and want to compare several destination units.

Kilogram conversions

Start with kilograms and convert to common weight and mass units.

kg to lbs kg to grams kg to ounces kg to stone kg to metric-tons

Pound conversions

Start with pounds and convert to common weight and mass units.

lbs to kg lbs to grams lbs to ounces lbs to stone lbs to metric-tons

Gram conversions

Start with grams and convert to common weight and mass units.

grams to kg grams to lbs grams to ounces grams to stone grams to metric-tons

Ounce conversions

Start with ounces and convert to common weight and mass units.

ounces to kg ounces to lbs ounces to grams ounces to stone ounces to metric-tons

Stone conversions

Start with stone and convert to common weight and mass units.

stone to kg stone to lbs stone to grams stone to ounces stone to metric-tons

Metric Ton conversions

Start with metric tons and convert to common weight and mass units.

metric-tons to kg metric-tons to lbs metric-tons to grams metric-tons to ounces metric-tons to stone

All weight and mass conversion pages

This complete index helps users and search engines discover every generated weight and mass conversion page.

kg to lbs lbs to kg grams to ounces ounces to grams lbs to ounces ounces to lbs stone to kg kg to stone metric-tons to lbs lbs to metric-tons kg to grams kg to ounces kg to metric-tons lbs to grams lbs to stone grams to kg grams to lbs grams to stone grams to metric-tons ounces to kg ounces to stone ounces to metric-tons stone to lbs stone to grams stone to ounces stone to metric-tons metric-tons to kg metric-tons to grams metric-tons to ounces metric-tons to stone

Use these links to move between neighboring converter categories, hand-written unit references, popular units, and complete site indexes.

Unit Wiki and references

Weight and Mass unit wikiDefinitions, scale, symbols, and unit relationships Kilogram unit guidekg reference and examples Pound unit guidelb reference and examples Gram unit guideg reference and examples Ounce unit guideoz reference and examples Stone unit guidest reference and examples Metric Ton unit guidet reference and examples

Complete indexes and tools

Complete weight and mass indexEvery generated page in this category All converter categoriesGrouped site-wide converter directory Open the main converterSwitch between major categories quickly Request a unitSuggest missing units or categories

How weight and mass conversion works

Most pages in this category use a conversion factor between two units. The calculator applies that factor automatically and shows the result instantly.

How to use this converter

Enter a value, choose the units, and read the converted result immediately. Each dedicated conversion page also includes a formula, examples, a conversion table, related links, and FAQ.

FAQ

Which weight and mass units are included?

This category includes kilograms, pounds, grams, ounces, stone, metric tons and related units.

Are formulas included?

Yes. Individual conversion pages include formulas, manual steps, examples, and conversion tables.