Length conversion
Miles to Kilometres (mi to km)
Convert a route length or mileage-log entry to kilometres. These are land miles, as used for road distances, rather than nautical miles.
1 mi ≈ 1.6093 km — the calculator keeps the stored factor; this summary may be rounded.
A 10-mile route in a journey log
- Starting measurement
- 10 mi
- Converted value (rounded if needed)
- 16.0934 km
If a log contains several unrounded mile entries, add them before converting when you need a total. Rounding each converted entry first can slightly change the sum.
Miles to Kilometres conversion chart
| miles | kilometres |
|---|---|
| 1 mi | 1.6093 km |
| 2 mi | 3.2187 km |
| 3 mi | 4.828 km |
| 4 mi | 6.4374 km |
| 5 mi | 8.0467 km |
| 6 mi | 9.6561 km |
| 7 mi | 11.2654 km |
| 8 mi | 12.8748 km |
| 9 mi | 14.4841 km |
| 10 mi | 16.0934 km |
| 12 mi | 19.3121 km |
| 15 mi | 24.1402 km |
| 18 mi | 28.9682 km |
| 20 mi | 32.1869 km |
| 25 mi | 40.2336 km |
| 30 mi | 48.2803 km |
| 40 mi | 64.3738 km |
| 50 mi | 80.4672 km |
| 60 mi | 96.5606 km |
| 75 mi | 120.701 km |
| 100 mi | 160.934 km |
How to convert by hand
Reference relationship (display may be rounded)
1 mi = 1.609344 km
- Multiply the amount in miles by the number of kilometres per unit.
- Use the calculator for the stored precision; copying a short displayed factor introduces extra rounding.
- Round the result to suit your measurement, after completing the calculation.
Related conversions
About miles and kilometres
Convert each measured dimension separately. A width stays a width and a diagonal stays a diagonal; changing units does not turn a product’s nominal size into a measured size.
Mile
US / Imperial5,280 international feet, or exactly 1.609344 kilometres. This is a land mile, not a nautical mile.
Commonly used for: US and UK road distances, mileage logs and running routes.
Kilometre
Metric (SI)One thousand metres. A kilometre is a distance; kilometres per hour describe speed.
Commonly used for: Journey lengths, walking routes and race distances.
Questions
Is a mile the same as a nautical mile?
No. This page uses the international land mile, exactly 1.609344 km. A nautical mile belongs to a different unit definition, so a marine distance should not be entered here as land miles.
How do I convert kilometres back to miles?
Enter the value in the kilometres field above to work backwards, or open the Kilometres to Miles converter. This uses the stored factors rather than dividing by a rounded number copied from the chart.
Why might the chart and calculator show different decimal places?
The chart uses a compact rounded display. The editable calculator can show up to six decimal places and uses the factors or temperature formulas stored in the library. More displayed digits do not make the original measurement more precise.
Precision and source
The calculator uses stored conversion factors and temperature formulas, then rounds the result for display. A short decimal in a chart is not a claim of exactness. For a calculation with several steps, keep as much precision as the original measurement supports and round at the end.
Reference: NIST SP 811 conversion factors. Its alphabetical tables distinguish unit variants and temperature readings from intervals. Published by ToolsNow. Report a conversion problem.
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