How the Weight Converter Works
This tool instantly converts a value between all major weight and mass units: milligrams, grams, kilograms, quintals, tonnes, pounds, ounces, and stone.
Conversion Table
| Unit | Equivalent in grams |
|---|---|
| 1 milligram (mg) | 0.001 g |
| 1 gram (g) | 1 g |
| 1 kilogram (kg) | 1,000 g |
| 1 quintal (q) | 100,000 g |
| 1 tonne (t) | 1,000,000 g |
| 1 pound (lb) | 453.592 g |
| 1 ounce (oz) | 28.350 g |
| 1 stone (st) | 6,350.293 g |
Metric vs Imperial
The International System (SI) uses the kilogram as the base unit of mass, redefined in 2019 based on the Planck constant. The imperial system uses pounds and ounces. One pound equals 16 ounces. Stone (14 pounds) is used in the UK especially for body weight.
Common Conversions
- kg to pounds: multiply by 2.20462
- grams to ounces: multiply by 0.03527
- stone to kg: multiply by 6.35029