Km to Miles Converter
Enter a value in kilometers to convert it to miles — 1 km = 0.6214 mi.
Reviewed by the ToolNestr Editorial Team — July 2026
How to convert kilometers to miles
Converting kilometers to miles is a simple multiplication: take your length in kilometers and multiply by the fixed conversion factor of 0.6213711922 to get miles. Because the factor never changes, the same calculation works for any value, from tiny amounts to very large ones. The converter above applies it the moment you type, with no rounding errors in the underlying maths.
Ideal for road trips and running, translating a metric distance into the miles used on US and UK roads. Knowing how to move between kilometers and miles is useful whenever measurements are given in one system but you need them in the other — for shopping, travel, study, cooking, engineering or simply comparing figures from different countries.
The reference table below lists common kilometers values already converted to miles, so you can read off everyday amounts at a glance without typing. For the opposite direction, use the Miles to Km Converter, which reverses the calculation exactly.
The formula and a worked example
Formula
mi = km × 0.6213711922
Worked example
To convert 10 kilometers: 10 × 0.6213711922 = 6.2137 mi. To convert 25 kilometers: 25 × 0.6213711922 = 15.5343 mi.
Km to Miles conversion table
| Kilometers (km) | Miles (mi) |
|---|---|
| 1 | 0.6214 |
| 2 | 1.2427 |
| 5 | 3.1069 |
| 10 | 6.2137 |
| 25 | 15.5343 |
| 50 | 31.0686 |
| 100 | 62.1371 |
| 250 | 155.3428 |
| 500 | 310.6856 |
| 1,000 | 621.3712 |
Values are rounded for display; the converter above keeps full precision.
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Frequently asked questions
How do I convert kilometers to miles?
Multiply the number of kilometers by 0.6213711922. For example, 10 km × 0.6213711922 = 6.2137 mi. The converter above does this automatically.
How many miles are in one kilometers?
There are 0.6214 miles in one kilometers. Multiply by 0.6213711922 for any amount.
Is this Km to Miles converter accurate?
Yes. It uses the exact conversion factor of 0.6213711922, so results are precise. Values shown in the table are rounded for readability.
How do I convert miles back to kilometers?
Use our Miles to Km Converter for the reverse direction, or divide the miles value by 0.6213711922.