Centimetres to Kilometres Converter
Convert centimetres (cm) to kilometres (km) instantly. Length conversions come up when reading overseas furniture specs, cycling the Round Island Route in kilometres while a foreign app shows miles, or checking marine distances in the Singapore Strait in nautical miles.
Result
- Kilometres
- 1.000000e-5 km
How to use the centimetres to kilometres converter
- Enter the centimetres (cm).
- The results update as you type, or press Calculate.
- Read the kilometres first, then the supporting figures below it.
Formula
Kilometres = centimetres × 1.000000e-05
Worked example
For example, with these inputs:
- Centimetres (cm): 1
the calculator returns:
- Kilometres: 1.000000e-5 km
Centimetres to Kilometres table
| Centimetres | Kilometres |
|---|---|
| 1 cm | 1.000000e-5 km |
| 2 cm | 2.000000e-5 km |
| 5 cm | 5.000000e-5 km |
| 10 cm | 0.0001 km |
| 20 cm | 0.0002 km |
| 25 cm | 0.00025 km |
| 50 cm | 0.0005 km |
| 100 cm | 0.001 km |
| 250 cm | 0.0025 km |
| 500 cm | 0.005 km |
| 1,000 cm | 0.01 km |
About this conversion
Length conversions come up when reading overseas furniture specs, cycling the Round Island Route in kilometres while a foreign app shows miles, or checking marine distances in the Singapore Strait in nautical miles.
Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.
Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.
Frequently asked questions
How many kilometres are in one centimetre?
1 cm = 1.000000e-5 km.
How do I convert cm to km?
Kilometres = centimetres × 1.000000e-05.