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Convert kilograms, grams, milligrams and metric tonnes, or switch between pounds, ounces and metric units.
Use a point or comma for decimals.
Mass
Metric mass units use steps of 1,000: a kilogram contains 1,000 grams, and a gram contains 1,000 milligrams. Pounds and ounces use their defined relationships to the kilogram.
result = value × starting unit factor in kg ÷ target unit factor in kg
| Starting mass | Equivalent mass |
|---|---|
| 1 t (metric tonne) | 1,000 kg |
| 1 kg | 1,000 g |
| 1 g | 1,000 mg |
| 1 lb (pound) | 0.45359237 kg |
| 1 oz (ounce) | 28.349523125 g |
| 1 lb | 16 oz |
The tonne (t) here is the metric tonne of 1,000 kg, not a US short ton or an imperial long ton. An ounce (oz) is an avoirdupois mass ounce, not a troy ounce or a fluid ounce. Converting grams to milliliters also requires the material’s density.
For 10 lb, multiply 10 by 0.45359237 to get 4.5359237 kg. For 750 g, divide 750 by 1,000 to get 0.75 kg.
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