Metric unitsU.K.
| Kilometre = | 1000 metres. |
| METRE | is the length of the path travelled by light in vacuum during a time interval of 1/299 792 458 of a second. |
| Decimetre = | 1/10 metre. |
| Centimetre = | 1/100 metre. |
| Millimetre = | 1/1000 metre. |
| Kilometre = | 1000 metres. |
| METRE | is the length of the path travelled by light in vacuum during a time interval of 1/299 792 458 of a second. |
| Decimetre = | 1/10 metre. |
| Centimetre = | 1/100 metre. |
| Millimetre = | 1/1000 metre. |