Inch to Kilometer Converter
1 in = 0.000025 km — convert instantly with formula and table.
Enter any number above and the result updates as you type. Everything runs locally in your browser, so it is instant and private.
Quick answer: one inch equals 0.0000254 kilometers. So to convert inches to kilometers, multiply by 0.0000254.
How to convert inches to kilometers
kilometers = inches × 0.0000254
The inch has been defined as exactly 2.54 centimeters since 1959. Screen sizes worldwide are still quoted in inches, making it one of the most-converted units on the internet.
The kilometer (1,000 meters) is the standard unit for road distances and running races nearly everywhere outside the United States and the United Kingdom.
Inch to Kilometer conversion table
| Inch (in) | Kilometer (km) |
|---|---|
| 0.01 in | 0.00000025 km |
| 0.1 in | 0.00000254 km |
| 0.25 in | 0.00000635 km |
| 0.4 in | 0.00001016 km |
| 0.75 in | 0.00001905 km |
| 1.25 in | 0.00003175 km |
| 1.75 in | 0.00004445 km |
| 2.5 in | 0.0000635 km |
| 3.5 in | 0.0000889 km |
| 4.5 in | 0.0001143 km |
| 6 in | 0.0001524 km |
| 8 in | 0.0002032 km |
| 10 in | 0.000254 km |
| 12 in | 0.0003048 km |
| 14 in | 0.0003556 km |
| 16 in | 0.0004064 km |
| 18 in | 0.0004572 km |
| 20 in | 0.000508 km |
| 24 in | 0.0006096 km |
| 26 in | 0.0006604 km |
| 30 in | 0.000762 km |
| 35 in | 0.000889 km |
| 45 in | 0.001143 km |
| 55 in | 0.001397 km |
| 65 in | 0.001651 km |
| 75 in | 0.001905 km |
| 85 in | 0.002159 km |
| 95 in | 0.002413 km |
| 110 in | 0.002794 km |
| 125 in | 0.003175 km |
| 175 in | 0.004445 km |
| 250 in | 0.00635 km |
| 350 in | 0.00889 km |
| 450 in | 0.01143 km |
| 600 in | 0.01524 km |
| 750 in | 0.01905 km |
| 900 in | 0.02286 km |
| 1,500 in | 0.0381 km |
| 2,500 in | 0.0635 km |
| 10,000 in | 0.254 km |
Need the opposite direction? Use the Kilometer to Inch converter, or read our complete guide to length conversions for every formula in one place.
Frequently asked questions
How many kilometers are in one inch?
One inch equals 0.0000254 kilometers. Multiply any inch value by 0.0000254 to get kilometers.
What is 10 inches in kilometers?
10 inches equal 0.000254 kilometers (10 × 0.000025).
Is the inch to kilometer conversion exact?
The conversion factor used here (0.0000254) is based on the internationally agreed definitions of both units, so results are exact up to rounding of the final decimal places.
Is my data stored when I use this converter?
No. The conversion runs entirely in your browser with JavaScript — nothing you type is sent to a server, logged or stored.