Convert Inch to Kilometer
Use this free converter to change inches (in) into kilometers (km). Inch and kilometer both measure length. As a quick reference, 1 in equals 0.0000254 km, and 1 km equals 39370.079 in.
Free · runs in your browser · no sign-up
Kilometer (km)
0.0000254
1 in = 0.0000254 km
Length conversion table
| Inch | Kilometer |
|---|---|
| 0.01 | 2.5400e-7 |
| 0.1 | 0.00000254 |
| 0.5 | 0.0000127 |
| 1 | 0.0000254 |
| 2 | 0.0000508 |
| 3 | 0.0000762 |
| 5 | 0.000127 |
| 10 | 0.000254 |
| 20 | 0.000508 |
| 25 | 0.000635 |
| 50 | 0.00127 |
| 100 | 0.00254 |
| 1,000 | 0.0254 |
How to convert Inch to Kilometer
Multiply the inch value by 0.0000254 to get kilometers.
- Enter the number of inches you want to convert.
- The converter instantly shows the equivalent value in kilometers.
- Worked example: 15 in × 0.0000254 = 0.000381 km.
- Use the swap button to reverse the conversion (kilometer to inch).
About these units
Inch (in)
- Definition
- An inch (in) is an imperial unit of length equal to exactly 2.54 centimeters, with twelve inches making a foot.
- History
- Originally the width of a thumb, the inch was standardised to 25.4 mm internationally in 1959.
- Current use
- Inches measure screen sizes, tyre and pipe dimensions, and everyday lengths in the US and UK.
Kilometer (km)
- Definition
- A kilometer (km) is 1,000 meters and is the metric unit used for measuring longer distances such as roads and travel.
- History
- It entered use with the metric system in the 1790s, combining the SI prefix "kilo-" (thousand) with the meter.
- Current use
- Most of the world expresses road distances and speed limits in kilometers; the main exceptions are the United States and the United Kingdom, which still use miles.
Frequently asked questions
How many kilometers are in a inch?
There are 0.0000254 km in 1 in. To convert, multiply the number of inches by 0.0000254.
How do I convert inches to kilometers?
Multiply the inch value by 0.0000254 to get kilometers. For example, 10 in = 0.000254 km.
Is this inch-to-kilometer converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert Inch to other length units
| Unit | 1 Inch equals |
|---|---|
| Meter (m) | 0.0254 m |
| Kilometer (km) | 0.0000254 km |
| Centimeter (cm) | 2.54 cm |
| Millimeter (mm) | 25.4 mm |
| Micrometer (µm) | 25400 µm |
| Nanometer (nm) | 25400000 nm |
| Mile (mi) | 0.000015782828 mi |
| Yard (yd) | 0.027777778 yd |
| Foot (ft) | 0.083333333 ft |
| Nautical Mile (nmi) | 0.000013714903 nmi |
| Light Year (ly) | 2.6848e-18 ly |