Type a value, choose the units and get an instant answer. The table below the converter shows the same value in every weight unit, and all factors use exact or internationally standard definitions.
How to convert weight units
- Enter the value.
- Pick the unit to convert from and to (⇄ swaps them).
- Read the result, formula and the table of all units.
Weight units
| Unit | Symbol | About |
|---|---|---|
| Milligram | mg | One thousandth of a gram. Used for medicine doses and nutrition labels. |
| Gram | g | One thousandth of a kilogram. Used for food, gold and small items. |
| Kilogram | kg | The SI base unit of mass. Used for body weight and groceries in most countries. |
| Metric ton | t | One thousand kilograms (a tonne). |
| Pound | lb | Exactly 0.45359237 kg. Used for body weight in the US and UK. |
| Ounce | oz | One sixteenth of a pound, about 28.35 g. Used for food portions in the US. |
| Stone | st | 14 pounds, about 6.35 kg. Used for body weight in the UK and Ireland. |
| US ton | ton | The short ton of 2,000 pounds (907.18 kg). |
| Carat | ct | Exactly 200 mg. Used to weigh gemstones and diamonds. |
| Troy ounce | oz t | About 31.1 g. The standard unit for gold and silver prices worldwide. |
| Tola | tola | About 11.66 g. The traditional unit for gold and silver in Pakistan, India and the Gulf. |
| Maund | maund | In Pakistan the standard maund (mann) is 40 kg, used for wheat, rice and other crops. |
Popular weight conversions
KG to LBS · LBS to KG · Grams to Ounces · Ounces to Grams · KG to Grams · Grams to KG · Stones to KG · KG to Stones · Grams to Pounds · Pounds to Grams · Ounces to Pounds · Pounds to Ounces · MG to Grams · Grams to MG · Tons to KG · KG to Tons · Tola to Grams · Grams to Tola · Troy Ounces to Grams · Troy Ounces to Tola · Carats to Grams · Grams to Carats · Maund to KG · KG to Maund
Frequently asked questions
How accurate is the weight converter?
It uses exact definitions where they exist and shows up to 10 significant figures, more than enough for everyday, school and engineering use.
Updated October 2026 · Built and tested by Sharjeel Tahir · How our tools are tested