km to mi Converter
Convert km to mi instantly: 1 km = 0.621371 mi. Free converter with the formula, a reference table and FAQs — no sign-up.
| km | mi |
|---|
How to convert km to mi
Enter your value
Type the number of km you want to convert into the left box. The result in mi appears instantly in the right box. You can also type into the right box to convert in the other direction.
Use the swap button
Click the ⇄ Swap button to reverse the conversion — mi to km. Your current value carries across so you don't have to re-enter anything.
About km and mi
km and mi are common length measurements.
Worked examples: km to mi
Multiply the km value by 0.621371 to get mi. A few quick examples:
- 5 km × 0.621371 = 3.10685 mi
- 25 km × 0.621371 = 15.5343 mi
- 250 km × 0.621371 = 155.343 mi
Related conversions
| km | mi |
|---|---|
| 0.1 | 0.06214 |
| 0.5 | 0.3107 |
| 1 | 0.6214 |
| 2 | 1.243 |
| 5 | 3.107 |
| 10 | 6.214 |
Frequently asked questions
How do I convert km to mi?
To convert km to mi, multiply by 0.621371. Or use the calculator above for instant results.
How many mi are in 1 km?
1 km equals 0.621371 mi.
Is the km to mi converter free?
Yes, the km to mi converter is completely free with no sign-up required, no downloads, and it works offline once the page has loaded.