📏 Centimeters to Kilometers Converter
Convert centimeters (cm) to kilometers (km) instantly, with the formula, a worked example and a conversion table.
Quick answer: 1 centimeter (cm) = 0.00001 kilometers (km). Formula: km = cm × 0.00001.
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Centimeters to Kilometers Converter inputs
Result
Centimeters to Kilometers conversion table
| Centimeters (cm) | Kilometers (km) |
|---|---|
| 0.1 cm | 0.000001 km |
| 0.5 cm | 0.000005 km |
| 1 cm | 0.00001 km |
| 2 cm | 0.00002 km |
| 3 cm | 0.00003 km |
| 5 cm | 0.00005 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 |
| 1,000 cm | 0.01 km |
Other length conversions
cm to mmcm to mcm to kmcm to incm to ftcm to ydcm to micm to nmi
How to convert centimeters to kilometers
Multiply the number of centimeters by 0.00001 to get kilometers: km = cm × 0.00001.
Example: 5 cm = 0.00005 km.
The centimeter (cm) and the kilometer (km) are both units of length. Need the opposite direction? Use the km to cm converter.
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Metric and imperial units
The metric system (SI) is used by almost every country and by science worldwide. Its units scale by powers of ten – 1 kilometer is 1,000 meters, 1 meter is 100 centimeters – which makes conversions inside the system easy. The imperial and US customary systems (inches, feet, pounds, gallons) are still used daily in the United States and partly in the UK.
Since 1959 the inch has been defined as exactly 2.54 centimeters and the pound as exactly 0.45359237 kilograms, so conversions between the two systems are exact. Note that a US gallon (3.785 L) and an imperial gallon (4.546 L) are different – choose the right one above.
This converter covers 10 categories and 66 units: length, weight, temperature, volume, area, speed, time, data, energy, pressure.
Frequently asked questions
How many kilometers are in a centimeter?
1 centimeter = 0.00001 kilometers.
How do I convert centimeters to kilometers?
Use the formula km = cm × 0.00001. For example, 5 cm = 0.00005 km.
How do I convert kilometers back to centimeters?
1 kilometer = 100,000 centimeters. Use the km to cm converter linked on this page.
Are these conversions exact?
Yes – all factors use the internationally defined values (for example 1 inch = 2.54 cm exactly, 1 pound = 0.45359237 kg exactly). Results are rounded to 8 significant digits for display.