Kilometre
Contents
Key Stage 2
Meaning
A kilometre is a distance the same as 1000 metres.
About Kilometres
- There are 1000 metres in one kilometre.
- The distance between London and Birmingham is 200 kilometres.
Key Stage 3
Meaning
A kilometre is a unit of distance equivalent to 1000 metres.
About Kilometres
- Kilometres are shortened to km with a lower case k and a lower case m.
- Kilometres are for distances larger than the distance between towns and cities.
Converting to Kilometres
| Unit | To convert | Kilometres |
| 1 Megametre (1Mm) | Convert to kilometres x1000. | 1000km |
| 1 kilometre (1km) | Convert to kilometres x1. | 1km |
| 1 metre (1m) | Convert to kilometres /1000. | 0.001km |
| 1 millimetre 1(mm) | Convert to kilometres /1000,000. | 0.000001km |
| 1 micrometre 1(µm) | Convert to kilometres /1000,000,000. | 0.000000001km |
| 1 centimetre 1(cm) | Convert to kilometres /100. | 0.00001km |
Key Stage 4
Meaning
Kilometres (km) are a unit of distance, displacement and wavelength 1,000 times larger than the SI Unit; the metre.
About Kilometres
- Kilometres are shortened to km with a lower case k and a lower case m.
- Kilo means one thousand so there are 1,000 Metres in a kilometre.
Converting to Kilometres
| Unit | To convert | Kilometres |
| 1 megametre (1Mm) | Convert to kilometres x103 | 1x103km |
| 1 kilometre (1km) | Convert to kilometres x1 | 1km |
| 1 Metre (1m) | Convert to kilometres x10-3 | 1x10-3km |
| 1 decimetre 1(dm) | Convert to Kilometres x10-4 | 1x10-4km |
| 1 centimetre 1(mm) | Convert to Kilometres x10-5 | 1x10-5km |
| 1 millimetre 1(mm) | Convert to kilometres x10-6 | 1x10-6km |
| 1 micrometre 1(µm) | Convert to kilometres x10-9 | 1x10-9km |
| 1 nanometre 1(nm) | Convert to kilometres x10-12 | 1x10-12km |
| Unit | To convert | Kilometres |
| 1 mile (1mi) | Convert to kilometres x1.609 | 1.609km |