Kilometer Converter
Created by: tinycalcs.com/en
Number of supported units: 46
Last update: 2026
The Kilometer Converter supports 46 different length units. This makes it possible to convert between kilometers [km], metric, Anglo-American, nautical, astronomical, and other length units as desired. All length measurements are converted in real time and displayed with up to 20 decimal places, ensuring sufficient accuracy.
Conversion of kilometers
In order to convert kilometers [km] into another unit of length, a conversion value is required. This value can be determined using a conversion table. However, the table is relatively large, confusing, and difficult for inexperienced users to understand. The tool below provides a solution to this problem by allowing the rounded conversion values for kilometers [km] to be queried directly from the conversion table.
Determine conversion factor
Conversion between kilometers and millimeters
A quick and precise conversion between kilometers [km] and millimeters [mm] is straightforward and requires only multiplication or division by 1,000,000. The conversion from kilometers [km] to millimeters [mm] is done by multiplying the value in kilometers [km] by 1,000,000. To reverse the conversion, divide the value in millimeters [mm] by 1,000,000 to obtain kilometers [km].
- Millimeters [mm] = kilometers [km] * 1,000,000
- Kilometers [km] = millimeters [mm] ÷ 1,000,000
Conversion between kilometers and centimeters
Conversions between kilometers [km] and centimeters [cm] are straightforward and can be performed with simple math. The required conversion factor is 100,000. To convert a value from kilometers [km] to centimeters [cm], multiply the number of kilometers [km] by 100,000. For values in centimeters [cm], divide by 100,000 to get the equivalent in kilometers [km].
- Centimeters [cm] = kilometers [km] * 100,000
- Kilometers [km] = centimeters [cm] ÷ 100,000
Conversion between kilometers and decimeters
The conversion between kilometers [km] and decimeters [dm] is quick to perform and requires only basic mathematical operations an the conversion factor 10,000. Multiply the number of kilometers [km] by 10,000 to get the converted value in decimeters [dm]. To convert a value in decimeters [dm] back to kilometers [km], simply divide the amount of decimeters [dm] by 10,000.
- Decimeters [dm] = kilometers [km] * 10,000
- Kilometers [km] = decimeters [dm] ÷ 10,000
Conversion between kilometers and meters
Kilometers [km] and meters [m] can be converted quickly and accurately with just a simple multiplication or division using the conversion factor 1,000. Converting kilometers [km] to meters [m] is performed by multiplying the number of kilometers [km] by 1,000. To convert a value from meters [m] to kilometers [km], divide the number of meters [m] by 1,000.
- Meters [m] = kilometers [km] * 1,000
- Kilometers [km] = meters [m] ÷ 1,000
Conversion between kilometers and inches
You can easily convert between kilometers [km] and inches [in] using the formulas provided below. For accurate results, it is important to follow the correct order of mathematical operations.
- Inches [in] = kilometers [km] ÷ 254 * 107
- Kilometers [km] = inches [in] * 254 ÷ 107
Kilometer
Decimal places
Metric units
American / British
Further units
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