Convert Inches to Kilometers
in to km · length conversion
What are inches and kilometers?
An inch is an imperial unit equal to exactly 2.54 cm, widely used in the US and UK. A kilometer is 1,000 meters, the standard metric unit for road distances. For scale: a doorway is about 2 m (6.6 ft) tall, and a marathon is 42.2 km (26.2 mi).
How to convert inches to kilometers
1 in = 0.0000254 km. To convert, multiply the number of inches by 0.0000254. For example, 5 in = 0.000127 km, and 20 in = 0.000508 km. To go the other way, multiply kilometers by 39,370.1 (since 1 km = 39,370.1 in).
Inches to Kilometers conversion table
| Inches (in) | Kilometers (km) |
|---|---|
| 1 | 0.0000254 |
| 2 | 0.0000508 |
| 5 | 0.000127 |
| 10 | 0.000254 |
| 20 | 0.000508 |
| 50 | 0.00127 |
| 100 | 0.00254 |
FAQ
What is 1 in in km?
1 in = 0.0000254 km. To convert any amount, multiply the number of inches by 0.0000254.
How do I convert kilometers back to inches?
Go the other way: 1 km = 39,370.1 in, so multiply kilometers by 39,370.1 to get inches.
Is a inche bigger than a kilometer?
No — 1 in is the smaller unit, equal to 0.0000254 km (it takes 39,370.1 in to make one km).
Are these length conversions exact?
They use the standard internationally-defined conversion factors. Results are rounded to six significant figures for readability, which is accurate enough for everyday and most technical use.