Length Converter
Metric and imperial distances.
Conversion
Inches to Kilometers Converter
1 inch = 0.0000254 km. Enter any value to convert inches (in) to kilometers (km), or use the table below for common values.
Formula
km = in × 0.0000254
Example: 10 in = 0.000254 km. To convert the other way, use in = km × 39,370.07874.
Quick mental estimate: multiply by about 0.000025.
Inches to Kilometers conversion table
| Inches (in) | Kilometers (km) |
|---|---|
| 1 in | 0.0000254 km |
| 2 in | 0.0000508 km |
| 3 in | 0.0000762 km |
| 4 in | 0.0001016 km |
| 5 in | 0.000127 km |
| 6 in | 0.0001524 km |
| 7 in | 0.0001778 km |
| 8 in | 0.0002032 km |
| 9 in | 0.0002286 km |
| 10 in | 0.000254 km |
| 15 in | 0.000381 km |
| 20 in | 0.000508 km |
| 25 in | 0.000635 km |
| 30 in | 0.000762 km |
| 40 in | 0.001016 km |
| 50 in | 0.00127 km |
| 75 in | 0.001905 km |
| 100 in | 0.00254 km |
| 250 in | 0.00635 km |
| 500 in | 0.0127 km |
| 1,000 in | 0.0254 km |
About inches and kilometers
The inch is defined as exactly 2.54 centimeters (international agreement of 1959). It is used in the US and UK for screen sizes, lumber, fasteners and body height.
The kilometer is 1,000 meters. It is the standard unit for road distances and speed limits in most of the world.
Other Length conversions
Kilometers → InchesReverse conversionMillimeters → Kilometersmm → kmCentimeters → Kilometerscm → kmMeters → Kilometersm → kmInches → Millimetersin → mmInches → Centimetersin → cmInches → Metersin → mInches → Feetin → ftInches → Yardsin → ydInches → Milesin → miInches → Nautical Milesin → nmiFeet → Kilometersft → kmYards → Kilometersyd → kmMiles → Kilometersmi → kmNautical Miles → Kilometersnmi → km
Frequently asked questions
How do I convert inches to kilometers?
Use the formula km = in × 0.0000254. For example, 10 in = 0.000254 km.
What is 1 inch in kilometers?
1 in = 0.0000254 km.
How do I convert kilometers back to inches?
Use in = km × 39,370.07874. 1 km = 39,370.07874 in.