10mm = 1 centimetre

1000mm = 1 metre

100cm = 1 metre

1000m = 1 kilometre

Millimetres: (Ant. approx. 8mm.)

Centimetres: (Can of Cola. 12cm tall.)

Metres: (Man 1.8 m tall.)

Kilometres: (Jet Runway 3 km.)

The units of metric measurements were created in France in 1799. The metric system is now the internationally accepted measurement system due to its simplicity and accuracy. The metric length system is based on the metre.