Convert kilometers to miles instantly. Enter a value below, or use the formula and reference table further down the page.
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How to convert kilometers to miles
Multiply the value by 0.6213711922.
mi = km × 0.6213711922Example: 10 km = 6.2137 mi.
Kilometers to Miles conversion table
| Kilometers (km) | Miles (mi) |
|---|---|
| 1 km | 0.6214 mi |
| 2 km | 1.2427 mi |
| 3 km | 1.8641 mi |
| 4 km | 2.4855 mi |
| 5 km | 3.1069 mi |
| 10 km | 6.2137 mi |
| 15 km | 9.3206 mi |
| 20 km | 12.4274 mi |
| 25 km | 15.5343 mi |
| 50 km | 31.0686 mi |
| 100 km | 62.1371 mi |
Frequently asked questions
How many miles is 1 kilometer?
1 kilometer equals 0.6214 miles.
What is the formula to convert km to mi?
To convert km to mi, multiply the value by 0.6213711922. The full formula is: mi = km × 0.6213711922.
How do I convert miles back to kilometers?
Use the same calculator above and type your value into the miles field instead — it converts in both directions. Or use the reverse formula: km = mi ÷ 0.6213711922.
Is the km to mi conversion exact?
The conversion factor used here (0.6213711922) is the standard internationally defined value. Results on this page are rounded to four decimal places for readability.