Miles to Km Converter
Enter a value in miles to convert it to kilometers — 1 mi = 1.6093 km.
Reviewed by the ToolNestr Editorial Team — July 2026
How to convert miles to kilometers
Converting miles to kilometers is a simple multiplication: take your length in miles and multiply by the fixed conversion factor of 1.609344 to get kilometers. 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.
Convert a distance in miles into kilometers for maps, fitness apps and international travel. Knowing how to move between miles and kilometers 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 miles values already converted to kilometers, so you can read off everyday amounts at a glance without typing. For the opposite direction, use the Km to Miles Converter, which reverses the calculation exactly.
The formula and a worked example
Formula
km = mi × 1.609344
Worked example
To convert 10 miles: 10 × 1.609344 = 16.0934 km. To convert 25 miles: 25 × 1.609344 = 40.2336 km.
Miles to Km conversion table
| Miles (mi) | Kilometers (km) |
|---|---|
| 1 | 1.6093 |
| 2 | 3.2187 |
| 5 | 8.0467 |
| 10 | 16.0934 |
| 25 | 40.2336 |
| 50 | 80.4672 |
| 100 | 160.9344 |
| 250 | 402.336 |
| 500 | 804.672 |
| 1,000 | 1,609.344 |
Values are rounded for display; the converter above keeps full precision.
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Frequently asked questions
How do I convert miles to kilometers?
Multiply the number of miles by 1.609344. For example, 10 mi × 1.609344 = 16.0934 km. The converter above does this automatically.
How many kilometers are in one miles?
There are 1.6093 kilometers in one miles. Multiply by 1.609344 for any amount.
Is this Miles to Km converter accurate?
Yes. It uses the exact conversion factor of 1.609344, so results are precise. Values shown in the table are rounded for readability.
How do I convert kilometers back to miles?
Use our Km to Miles Converter for the reverse direction, or divide the kilometers value by 1.609344.