Inches to Kilometers Converter
1 inch = 0.0000254 kilometers
1 inch equals 0.0000254 kilometers
How to convert inches to kilometers
Feet, inches, yards and miles use the international foot (0.3048 m). Older US survey-foot records use a different definition; check the survey document before applying these factors.
km = in × 0.0000254One inch is 0.0000254 kilometers, so a single multiplication converts any value.
0.000254 km = 10 × 0.0000254Inches to kilometers conversion table
Common values in inches, converted to kilometers.
| Inches (in) | Kilometers (km) |
|---|---|
| 1 | 0.0000254 |
| 2 | 0.0000508 |
| 3 | 0.0000762 |
| 4 | 0.0001016 |
| 5 | 0.000127 |
| 10 | 0.000254 |
| 20 | 0.000508 |
| 25 | 0.000635 |
| 50 | 0.00127 |
| 100 | 0.00254 |
| 250 | 0.00635 |
| 500 | 0.0127 |
| 1,000 | 0.0254 |
About these units
inchin
Exactly 2.54 centimetres since the 1959 international agreement.
Reference: International Yard and Pound Agreement (1959).
kilometerkm
One thousand metres. The standard unit for road distance in most of the world.
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.