Length Converter
This length converter is a handy online unit converter that helps you quickly convert various length units. The most common ones include kilometer, meter, centimeter, millimeter, and mile. Keep reading to find the formulas behind the length conversions and to read about the background of various length units.
List of length units
Our length converter is equipped with the most popular length units as listed below:
- Kilometer (km)
- Meter (m)
- Centimeter (cm)
- Millimeter (mm)
- Mile (mi)
- Nautical mile (NM)
- Yard (yd)
- Foot (ft)
- Inch (in)
- Angstrom (A)
Length conversions
The length conversion formulas below show you how various length units can be converted into centimeters:
- 1 kilometer [km] = 100000 centimeter [cm]
- 1 meter [m] = 100 centimeter [cm]
- 1 millimeter [mm] = 0.1 centimeter [cm]
- 1 mile [mi] = 160934.4 centimeter [cm]
- 1 nautical mile (NM) = 185200 centimeter [cm]
- 1 yard (yd) = 91.44 centimeter [cm]
- 1 foot (ft) = 30.48 centimeter [cm]
- 1 inch (in) = 2.54 centimeter [cm]
- 1 angstrom (A) = 0.00000001 centimeter [cm]
Length conversion table
The table below shows the conversion factors between the popular length units.
| km | m | cm | mm | mi | NM | yd | ft | in | A | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 km | 1 | 1000 | 100000 | 1000000 | 0.621371192 | 0.539956803 | 1093.613298 | 3280.839895 | 39370.07874 | 1E+13 |
| 1 m | 0.001 | 1 | 100 | 1000 | 0.000621371 | 0.000539957 | 1.093613298 | 3.280839895 | 39.37007874 | 10000000000 |
| 1 cm | 0.00001 | 0.01 | 1 | 10 | 6.21371E-06 | 5.39957E-06 | 0.010936133 | 0.032808399 | 0.393700787 | 100000000 |
| 1 mm | 0.000001 | 0.001 | 0.1 | 1 | 6.21371E-07 | 5.39957E-07 | 0.001093613 | 0.00328084 | 0.039370079 | 10000000 |
| 1 mi | 1.609344 | 1609.344 | 160934.4 | 1609344 | 1 | 0.868976242 | 1760 | 5280 | 63360 | 1.60934E+13 |
| 1 NM | 1.852 | 1852 | 185200 | 1852000 | 1.150779448 | 1 | 2025.371829 | 6076.115486 | 72913.38583 | 1.852E+13 |
| 1 yd | 0.0009144 | 0.9144 | 91.44 | 914.4 | 0.000568182 | 0.000493737 | 1 | 3 | 36 | 9144000000 |
| 1 ft | 0.0003048 | 0.3048 | 30.48 | 304.8 | 0.000189394 | 0.000164579 | 0.333333333 | 1 | 12 | 3048000000 |
| 1 in | 0.0000254 | 0.0254 | 2.54 | 25.4 | 1.57828E-05 | 0.027777778 | 0.027777778 | 254000000 | 1 | 254000000 |
| 1 A | 1E-13 | 1E-10 | 0.00000001 | 0.0000001 | 0.0000001 | 5.39957E-14 | 5.39957E-14 | 3.28084E-10 | 3.93701E-09 | 1 |
How to use the length calculator?
To perform a length conversion, walk through the steps below:
- Enter the source value into the box at the top left.
- Select the unit of the source.
- Select the unit of the target.
- The length conversion is automatically performed and the result is displayed at the right-hand side.