How to convert centimeters to kilometers
To convert a measurement in centimeters to kilometers, multiply the value by 0.00001. The conversion factor comes from the relationship between both units and the meter (the SI base unit of length).
For example, to convert 5 cm to kilometers: 5 × 0.00001 = 0.00005 km.
What is a centimeter?
A centimeter is a metric unit of length equal to one hundredth of a meter (0.01 m) or approximately 0.394 inches. Introduced as part of the metric system in 1795, the centimeter is derived from the Latin 'centum' (hundred). It remains widely used in everyday measurements despite the SI preference for meters.
Common uses of centimeters include: Human height measurement in most countries; Clothing and body measurements; Screen sizes and display dimensions; Medical measurements (wound size, tumor size).
What is a kilometer?
A kilometer is a metric unit of length equal to 1,000 meters or approximately 0.621 miles. The kilometer was introduced with the metric system in France in 1795, derived from the Greek 'khilioi' (thousand) and 'metron' (measure). It became the standard unit for measuring road distances in most countries.
Common uses of kilometers include: Road distances and speed limits in most countries; Running events (5K, 10K, marathon distances); Geographic distances between cities; Aviation altitude reporting in some regions.
Centimeters to kilometers worked examples
Here are some common values converted:
1 cm = 0.00001 km 5 cm = 0.00005 km 10 cm = 0.0001 km 50 cm = 0.0005 km 100 cm = 0.001 km
Frequently asked questions
How many kilometers are in one centimeter?
One centimeter (cm) equals 0.00001 kilometers (km). Multiply any value in centimeters by 0.00001 to convert to kilometers.
How do I convert centimeters to kilometers?
Multiply the value in centimeters by 0.00001. For example, 5 cm × 0.00001 = 0.00005 km.
How do I convert kilometers to centimeters?
Multiply the value in kilometers by 100,000, or divide by 0.00001. Use the swap button on the converter above to reverse the direction.
Is the centimeter to kilometer conversion exact?
Yes, metric-to-metric length conversions are exact because all metric units are defined as powers of 10 relative to the meter.
What is the formula for centimeters to kilometers?
The formula is: km = cm × 0.00001. This is derived from the definition of both units relative to the meter (the SI base unit of length).