Metric unitsU.K.
| Tonne, metric tonne = | 1000 kilograms. |
| KILOGRAM= | is the unit of mass; it is equal to the mass of the international prototype of the kilogram. |
| Hectogram = | 1/10 kilogram. |
| Gram = | 1/1000 kilogram. |
| Carat (metric) = | 1/5 gram. |
| Milligram = | 1/1000 gram. |