Kilometers to Miles Converter
Convert Kilometers to Miles (km to mi) instantly. Type a value and the result updates as you go, accurate to the full international standard.
Kilometers to Miles: the formula
One kilometer equals exactly 0.62137119 miles. So to convert any length from Kilometers to Miles, you multiply by 0.62137119:
Worked example
Convert 10 km to Miles: 10 × 0.62137119 = 6.213712 mi.
Quick conversion table
| Kilometers | Miles |
|---|---|
| 1 km | 0.621371 mi |
| 2 km | 1.242742 mi |
| 5 km | 3.106856 mi |
| 10 km | 6.213712 mi |
| 25 km | 15.53428 mi |
| 50 km | 31.06856 mi |
| 100 km | 62.137119 mi |
How to use this converter
Type your measurement into the Kilometers box and read the Miles result instantly. You can also type into the Miles box to convert in the reverse direction. Results update live as you type, no button needed.
Frequently asked questions
How do you convert Kilometers to Miles?
Multiply the kilometer value by 0.62137119. Because 1 kilometer equals exactly 0.62137119 miles, the formula is: mi = km × 0.62137119.
How many Miles are in one kilometer?
One kilometer equals 0.62137119 miles. Conversely, one mile equals 1.609344 kilometers.
Is this km to mi conversion exact?
Yes. It uses the internationally agreed definitions (1 inch = 0.0254 m exactly, 1 mile = 1609.344 m, etc.), so results are accurate to the full precision shown.
Can I convert Miles back to Kilometers?
Yes, to go the other way, multiply the mile value by 1.609344 (or divide by 0.62137119).
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