Kilometres to Centimetres Converter
Convert kilometres (km) to centimetres (cm) 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
- Centimetres
- 100,000 cm
How to use the kilometres to centimetres converter
- Enter the kilometres (km).
- The results update as you type, or press Calculate.
- Read the centimetres first, then the supporting figures below it.
Formula
Centimetres = kilometres × 100,000
Worked example
For example, with these inputs:
- Kilometres (km): 1
the calculator returns:
- Centimetres: 100,000 cm
Kilometres to Centimetres table
| Kilometres | Centimetres |
|---|---|
| 1 km | 100,000 cm |
| 2 km | 200,000 cm |
| 5 km | 500,000 cm |
| 10 km | 1,000,000 cm |
| 20 km | 2,000,000 cm |
| 25 km | 2,500,000 cm |
| 50 km | 5,000,000 cm |
| 100 km | 10,000,000 cm |
| 250 km | 25,000,000 cm |
| 500 km | 50,000,000 cm |
| 1,000 km | 100,000,000 cm |
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.
For everyday use, three or four significant figures are usually enough. Engineering, science and trade documents may need more, and rounding should happen only at the end of a calculation.
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.
Frequently asked questions
How many centimetres are in one kilometre?
1 km = 100,000 cm.
How do I convert km to cm?
Centimetres = kilometres × 100,000.