Weight and mass conversions
Every mass unit on the site, and every conversion between them. Each page shows a full table, the exact formula and a live calculator.
All mass units
| Unit | Symbol | In kilogram |
|---|---|---|
| kilogram | kg | 1 |
| gram | g | 0.001 |
| milligram | mg | 0.000001 |
| microgram | µg | 1 × 10^-9 |
| tonne | t | 1,000 |
| pound | lb | 0.45359237 |
| ounce | oz | 0.02834952313 |
| stone | st | 6.35029318 |
| short ton | ton | 907.18474 |
| long ton | long ton | 1,016.046909 |
| carat | ct | 0.0002 |
| grain | gr | 0.00006479891 |
Common conversions
- Kilograms to Grams
- Kilograms to Milligrams
- Kilograms to Tonnes
- Kilograms to Pounds
- Kilograms to Ounces
- Kilograms to Stone
- Grams to Kilograms
- Grams to Milligrams
- Grams to Tonnes
- Grams to Pounds
- Grams to Ounces
- Grams to Stone
- Milligrams to Kilograms
- Milligrams to Grams
- Milligrams to Tonnes
- Milligrams to Pounds
- Milligrams to Ounces
- Milligrams to Stone
- Tonnes to Kilograms
- Tonnes to Grams
- Tonnes to Milligrams
- Tonnes to Pounds
- Tonnes to Ounces
- Tonnes to Stone
- Pounds to Kilograms
- Pounds to Grams
- Pounds to Milligrams
- Pounds to Tonnes
- Pounds to Ounces
- Pounds to Stone
- Ounces to Kilograms
- Ounces to Grams
- Ounces to Milligrams
- Ounces to Tonnes
- Ounces to Pounds
- Ounces to Stone
- Stone to Kilograms
- Stone to Grams
- Stone to Milligrams
- Stone to Tonnes
- Stone to Pounds
- Stone to Ounces
Sources
- Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures