Convert length units instantly — meters, feet, inches, centimeters, kilometers, miles, and more.
| Unit | Name | Value |
|---|---|---|
| m | Meter | 0.01 |
| km | Kilometer | 0.00001 |
| mm | Millimeter | 10 |
| in | Inch | 0.39370079 |
| ft | Foot | 0.032808399 |
| yd | Yard | 0.010936133 |
| mi | Mile | 0.0000062137119 |
| nmi | Nautical Mile | 0.000005399568 |
Multiply the number of Centimeters by 1e-05 to get Kilometers. Formula: km = cm × 1e-05. Example: 10 cm × 1e-05 = 0.0001 km. To reverse, divide Kilometers by 1e-05 to get Centimeters.
| Centimeter (cm) | Kilometer (km) |
|---|---|
| 0.001 cm | 1×10-8 km |
| 0.01 cm | 1e-07 km |
| 0.1 cm | 1e-06 km |
| 0.5 cm | 5e-06 km |
| 1 cm | 1e-05 km |
| 2 cm | 2e-05 km |
| 5 cm | 5e-05 km |
| 10 cm | 0.0001 km |
| 20 cm | 0.0002 km |
| 50 cm | 0.0005 km |
| 100 cm | 0.001 km |
| 250 cm | 0.0025 km |
| 500 cm | 0.005 km |
| 1000 cm | 0.01 km |
| 10000 cm | 0.1 km |
To convert Centimeter to Kilometer, multiply by 1e-05. Example: 10 cm = 0.0001 km
To convert Kilometer back to Centimeter, divide by 1e-05 (multiply by 100000). Use the swap button above.
Start with 100 Centimeters = 0.001 km as your reference point. Scale up or down from there.
Map scales express real distance per centimeter of map. A 1:100,000 scale map means 1 cm = 1 km. Geographers, hikers, and military planners convert between centimeters on paper and kilometers on the ground constantly.
Running race courses are certified in meters and kilometers. Course setters measuring in centimeters on detailed elevation profiles convert to kilometers for official distance certification and pace calculation.
Geological section drawings are detailed in centimeters, while the actual rock formations they represent span kilometers. Geologists calculate representative scale and convert between centimeters and kilometers for cross-section publication.
Earthwork cut-and-fill calculations use centimeters for depth specifications but kilometers for route length on highway and railway projects — both units appear in the same quantity survey calculations.
Rain gauges measure precipitation in centimeters, while weather systems and river catchments are described in square kilometers. Hydrologists converting rainfall depth to volume use cm-to-km conversion in watershed modelling.
Geography students learning to read maps calculate real-world distances from map measurements — converting the centimeters they measure on the map to kilometers of actual distance using the given map scale.
The Centimeter is a unit of Length measurement (symbol: cm). 1 cm = 1e-05 km. Used in scientific and practical Length measurement applications.
The Kilometer is a unit of Length measurement (symbol: km). It is part of an internationally recognised measurement system used alongside the Centimeter.
The centimetre was introduced in 1795 as part of the French metric system — one-hundredth of a metre, from the Latin 'centum' (hundred). The CGS (centimetre-gram-second) system, built around the centimetre, became the dominant scientific measurement system in the 19th century and remains standard in astrophysics and electromagnetism today. The centimetre is now the primary unit for human body measurements, clothing sizes, and everyday objects in most of the world.
The kilometre was introduced in 1795 as part of the French metric system — exactly 1,000 metres. France was the first country to adopt a universal decimal measurement system, replacing a chaotic patchwork of regional units. The metre itself was defined as one ten-millionth of the distance from the North Pole to the equator through Paris. By the 20th century, the kilometre had become the world's standard unit for road distances, replacing miles in country after country. The US remains the only major exception, still officially using miles for road distances.
Common use: Centimeter to Kilometer conversion is needed when working with international standards, scientific publications, or reference materials that use different unit systems for Length measurement.