Standard Tools

Weight & Mass Converter.

Convert milligram, gram, kilogram, pound, ounce, stone, and ton weights.

Units Defined in Weight & Mass

Below is the complete registry of units supported within the conversion tool.

Milligram

mg, milligram, milligrams

One-thousandth of a gram. Used for small dosages and chemistry measurements.

Gram

g, gram, grams

Metric unit of mass equal to one-thousandth of a kilogram.

Kilogram

kg, kilogram, kilograms

The base SI unit of mass, standard worldwide for daily weight measurements.

Ounce

oz, ounce, ounces

Imperial and US customary unit of weight equal to 1/16 of a pound.

Pound

lb, lbs, pound, pounds

Standard imperial and US unit of mass equal to exactly 453.59237 grams.

Stone

st, stone, stones

A unit of weight in the imperial system equal to 14 pounds. Commonly used in the UK for body weight.

Ton (US)

ton, tons, short ton

US customary unit of mass equal to 2,000 pounds (short ton).

Popular Weight & Mass Conversions

In-depth guides with formulas, worked examples, and practical tips.

Gram to Ounce (g to oz) → Kilogram to Pound (kg to lb) → Kilogram to Stone (kg to st) → Ounce to Gram (oz to g) → Pound to Kilogram (lb to kg) → Stone to Pound (st to lb) →

All Weight & Mass Conversions

Every supported unit pair. Each opens the instant calculator above with the units pre-selected.

Milligram to Gram (mg to g) Milligram to Kilogram (mg to kg) Milligram to Ounce (mg to oz) Milligram to Pound (mg to lb) Milligram to Stone (mg to st) Milligram to Ton (US) (mg to ton) Gram to Milligram (g to mg) Gram to Kilogram (g to kg) Gram to Pound (g to lb) Gram to Stone (g to st) Gram to Ton (US) (g to ton) Kilogram to Milligram (kg to mg) Kilogram to Gram (kg to g) Kilogram to Ounce (kg to oz) Kilogram to Ton (US) (kg to ton) Ounce to Milligram (oz to mg) Ounce to Kilogram (oz to kg) Ounce to Pound (oz to lb) Ounce to Stone (oz to st) Ounce to Ton (US) (oz to ton) Pound to Milligram (lb to mg) Pound to Gram (lb to g) Pound to Ounce (lb to oz) Pound to Stone (lb to st) Pound to Ton (US) (lb to ton) Stone to Milligram (st to mg) Stone to Gram (st to g) Stone to Kilogram (st to kg) Stone to Ounce (st to oz) Stone to Ton (US) (st to ton) Ton (US) to Milligram (ton to mg) Ton (US) to Gram (ton to g) Ton (US) to Kilogram (ton to kg) Ton (US) to Ounce (ton to oz) Ton (US) to Pound (ton to lb) Ton (US) to Stone (ton to st)

FAQs

Frequently Asked Questions

How many grams are in a pound?

There are exactly 453.59237 grams in a standard pound.

What is a stone in weight?

A stone is an imperial unit of weight equal to 14 standard pounds, or approximately 6.35 kilograms.

How many ounces are in a pound?

There are exactly 16 ounces in one standard pound.