Miles to Kilometers Converter (mi to km)
Convert miles to kilometers instantly with our free mi to km calculator. Enter a value to see the result.
How to convert miles to kilometers
To change mi into km, use this formula:
Quick mental estimate: multiply by about 1.6.
Example: to convert 25 mi to km, calculate 40.2336 km. To go the other way, use mi = km ÷ 1.60934.
Popular miles to kilometers conversions
- 1 mi to km = 1.60934 km
- 2 mi to km = 3.21869 km
- 3 mi to km = 4.82803 km
- 5 mi to km = 8.04672 km
- 10 mi to km = 16.0934 km
- 15 mi to km = 24.1402 km
- 20 mi to km = 32.1869 km
- 25 mi to km = 40.2336 km
- 30 mi to km = 48.2803 km
- 40 mi to km = 64.3738 km
- 50 mi to km = 80.4672 km
- 60 mi to km = 96.5606 km
- 70 mi to km = 112.654 km
- 80 mi to km = 128.748 km
- 90 mi to km = 144.841 km
- 100 mi to km = 160.934 km
Miles to Kilometers conversion chart
| Miles (mi) | Kilometers (km) |
|---|---|
| 1 mi | 1.60934 km |
| 2 mi | 3.21869 km |
| 5 mi | 8.04672 km |
| 10 mi | 16.0934 km |
| 20 mi | 32.1869 km |
| 25 mi | 40.2336 km |
| 50 mi | 80.4672 km |
| 75 mi | 120.701 km |
| 100 mi | 160.934 km |
| 250 mi | 402.336 km |
| 500 mi | 804.672 km |
| 1,000 mi | 1,609.34 km |
When do you need mi to km conversion?
This conversion is commonly used for travel, construction, DIY projects, sewing, sports and school homework. Different countries and industries use different units, so converting miles to kilometers helps you compare measurements accurately.
Frequently asked questions
How many kilometers are in 1 miles?
1 mi equals 1.60934 km.
How do I convert miles to kilometers?
Use the formula km = mi × 1.60934. For example, 25 mi = 40.2336 km.
What is 10 mi in km?
10 mi = 16.0934 km.
What is 100 mi in km?
100 mi = 160.934 km.
How do I convert km back to mi?
Use mi = km ÷ 1.60934. You can also use our Kilometers to Miles converter.
Is this mi to km converter accurate?
Yes. It uses standard international conversion factors and shows up to 6 significant digits.