Weight & Mass Converter
Convert between metric, US customary and imperial weights, troy and apothecary units, and historical measures such as the talent, libra, pood, tola and maund.
Weight and mass are not the same thing in physics, but everyday scales and converters treat them alike on Earth, so they are combined here.
Popular weight & mass conversions
- Kilograms to pounds
- Pounds to kilograms
- Ounces to grams
- Grams to ounces
- Pounds to ounces
- Stone to pounds
- Stone to kilograms
- Kilograms to stone
- Metric tons to short tons
- Troy ounces to grams
- Carats to grams
- Poods to kilograms
- Tola to grams
Common units
| Unit | Symbol | Value in kilograms |
|---|---|---|
| kilogram | kg | 1 kg |
| gram | g | 0.001 kg |
| milligram | mg | 0.000001 kg |
| microgram | µg | 1×10⁻⁹ kg |
| metric ton | t | 1,000 kg |
| carat | ct | 0.0002 kg |
| pound | lb | 0.45359237 kg |
| ounce | oz | 0.02834952313 kg |
| stone | st | 6.35029318 kg |
| short ton | ton (US) | 907.18474 kg |
| long ton | ton (UK) | 1,016.046909 kg |
| troy ounce | oz t | 0.0311034768 kg |
Other units
| Unit | Symbol | Value in kilograms |
|---|---|---|
| dalton | Da | ≈ 1.660539069×10⁻²⁷ kg |
| Earth mass | M⊕ | ≈ 5.9722×10²⁴ kg |
| solar mass | M☉ | ≈ 1.98847×10³⁰ kg |
Historical and traditional units
| Unit | Symbol | Value in kilograms |
|---|---|---|
| quintal | q | 100 kg |
| grain | gr | 0.00006479891 kg |
| dram | dr | 0.001771845195 kg |
| hundredweight (US) | cwt (US) | 45.359237 kg |
| hundredweight (UK) | cwt (UK) | 50.80234544 kg |
| quarter (UK) | qr | 12.70058636 kg |
| slug | slug | 14.59390294 kg |
| troy pound | lb t | 0.3732417216 kg |
| pennyweight | dwt | 0.00155517384 kg |
| scruple | ℈ | 0.0012959782 kg |
| apothecaries' dram | ʒ | 0.0038879346 kg |
| Roman pound (libra) | libra | ≈ 0.3289 kg |
| Roman ounce (uncia) | uncia | ≈ 0.0274 kg |
| Attic talent | talent | ≈ 26.196 kg |
| Attic mina | mina | ≈ 0.4366 kg |
| Attic drachma | drachma | ≈ 0.004366 kg |
| obol | obol | ≈ 0.0007276666667 kg |
| shekel (biblical) | shekel | ≈ 0.0115 kg |
| Hebrew talent | talent | ≈ 28.8 kg |
| monme | mon | 0.00375 kg |
| kin | kin | 0.6 kg |
| kan | kan | 3.75 kg |
| qian (Chinese) | qian | 0.005 kg |
| liang (Chinese) | liang | 0.05 kg |
| jin (Chinese) | jin | 0.5 kg |
| dan (Chinese) | dan | 50 kg |
| catty (Hong Kong) | catty | 0.6047898267 kg |
| tael (Hong Kong) | tael | 0.03779936417 kg |
| tola | tola | 0.0116638038 kg |
| seer | seer | 0.933104304 kg |
| maund | maund | 37.32417216 kg |
| zolotnik | zol | 0.004265803958 kg |
| funt (Russian pound) | funt | 0.40951718 kg |
| pood | pood | 16.3806872 kg |
| libra (Castilian) | libra | ≈ 0.460093 kg |
| arroba (Spanish) | @ | ≈ 11.502325 kg |
| arroba (Brazilian) | @ | 15 kg |