Mass
Mass and weight converter: mg, g, kg, tonnes, carats, ounces, pounds, stones and tons. Exact conversion with a solution.
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Enter a whole number, a decimal (2.5), a fraction (1/3) or scientific notation (6.02e23).
The mass converter converts grams, kilograms, milligrams, quintals and tonnes, as well as carats, ounces, pounds, stones, US short tons, UK long tons and old Russian units (zolotnik, funt, pood). The result is exact, and the solution shows the conversion factor and the value in all units.
Metric units of mass
| Unit | Relation |
|---|---|
| 1 gram (g) | 1000 mg |
| 1 kilogram (kg) | 1000 g |
| 1 tonne (t) | 1000 kg |
| 1 carat (ct) | 0.2 g |
Imperial and US units
| Unit | Exact value |
|---|---|
| pound (lb) | 0.45359237 kg |
| ounce (oz) = 1/16 lb | 28.349523125 g |
| stone = 14 lb | 6.35029318 kg |
| short ton (US) = 2000 lb | 907.18474 kg |
| long ton (UK) = 2240 lb | 1016.0469088 kg |
Example. 150 lb = 150 · 0.45359237 = 68.0388555 kg.
Mass and weight are different quantities: mass is measured in kilograms, while weight is the force with which a body presses on its support, measured in newtons.
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