How to convert centimeters to kilometers
km = cm × 0.00001Multiply the value in centimeters by 0.00001. To go the other way, multiply by 100,000 (or divide by 0.00001).
A centimeter is smaller than a kilometer: it takes 100,000 centimeters to make one kilometer.
Worked examples
- 1 centimeter1 cm × 0.00001 = 0.00001 km
- 5 centimeters5 cm × 0.00001 = 0.00005 km
- 10 centimeters10 cm × 0.00001 = 0.0001 km
- 20 centimeters20 cm × 0.00001 = 0.0002 km
- 100 centimeters100 cm × 0.00001 = 0.001 km
Centimeters to kilometers conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Centimeters (cm) | Kilometers (km) |
|---|---|
| 0.1 cm | 0.000001 km |
| 0.25 cm | 0.0000025 km |
| 0.5 cm | 0.000005 km |
| 1 cm | 0.00001 km |
| 2 cm | 0.00002 km |
| 3 cm | 0.00003 km |
| 4 cm | 0.00004 km |
| 5 cm | 0.00005 km |
| 6 cm | 0.00006 km |
| 7 cm | 0.00007 km |
| 8 cm | 0.00008 km |
| 9 cm | 0.00009 km |
| 10 cm | 0.0001 km |
| Centimeters (cm) | Kilometers (km) |
|---|---|
| 12 cm | 0.00012 km |
| 15 cm | 0.00015 km |
| 20 cm | 0.0002 km |
| 25 cm | 0.00025 km |
| 30 cm | 0.0003 km |
| 40 cm | 0.0004 km |
| 50 cm | 0.0005 km |
| 75 cm | 0.00075 km |
| 100 cm | 0.001 km |
| 250 cm | 0.0025 km |
| 500 cm | 0.005 km |
| 1,000 cm | 0.01 km |
About the units
Centimeter (cm)
One hundredth of a metre. Centimetres are the everyday metric unit for body height, clothing sizes and small objects; a standard paper clip is about 3 cm long. One centimeter equals 0.01 meters (m).
Kilometer (km)
One thousand metres. Kilometres measure road distances and running races in most countries; a 10K race is 10 km, about 6.2 miles. One kilometer equals 1,000 meters (m).
Frequently asked questions
How many kilometers are in one centimeter?
There are 0.00001 kilometers in one centimeter, and this value is exact by definition.
How do I convert centimeters to kilometers?
Multiply the number of centimeters by 0.00001. For example, 10 cm × 0.00001 = 0.0001 km.
How many centimeters are in one kilometer?
One kilometer equals 100,000 centimeters. That is the reverse factor, 1 ÷ 0.00001.
What is 10 centimeters in kilometers?
10 cm = 0.0001 km.
Is this cm to km converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.