Miles to Kilometers Converter
Convert miles to km instantly. Free online mi to km calculator for travel, running, and maps—multiply by 1.609344.
How to Convert Mile to Kilometer
To convert miles to kilometers, multiply the number of miles by 1.609344. One mile equals exactly 1.609344 kilometers, making this conversion essential for travel, navigation, and distance calculations.
Conversion Formula:
value * 1.6093440000Conversion Examples
Example: 1 mile to km
- 1 × 1.609344 = 1.609 km
1 mile = 1.609 kilometers
Base factor for mental math.
Example: 26.2 miles (marathon) to km
- 26.2 × 1.609344 ≈ 42.195 km
26.2 miles ≈ 42.2 km
Standard marathon distance.
Conversion Chart
| Mile | Kilometer |
|---|---|
| 1 | 1.6093 |
| 2 | 3.2187 |
| 5 | 8.0467 |
| 10 | 16.0934 |
| 20 | 32.1869 |
| 25 | 40.2336 |
| 50 | 80.4672 |
| 100 | 160.934 |
| 200 | 321.869 |
| 500 | 804.672 |
| 1000 | 1609.34 |
| 2000 | 3218.69 |
Conversion Formula
The formula to convert miles to kilometers is:
miles × 1.609344 = kilometers
Mathematically, you can write this as:
miles × 1.609344 kilometers/mile = kilometers
Since 1 mile equals exactly 1.609344 kilometers by international standard, multiplying by 1.609344 converts miles to kilometers using the standard international conversion factor.
Quick Conversion Tip
Quick conversion: Multiply miles by 1.6 (approximately) to get kilometers. For example, 10 mi ≈ 16 km, 50 mi ≈ 80 km, 100 mi ≈ 160 km. For a rough estimate, 1 mile is approximately 1.6 kilometers.
Unit Definitions
Mile (mi)
A mile is an imperial unit of length equal to 5,280 feet or exactly 1.609344 kilometers. It is commonly used in the United States and United Kingdom for measuring longer distances, especially road distances and travel routes.
1 mile = 1,760 yards = 5,280 feet = 63,360 inches = 1.609344 kilometers
Kilometer (km)
A kilometer is a metric unit of length equal to 1,000 meters. It is commonly used worldwide for measuring longer distances, such as road distances, travel routes, and geographical measurements.
1 kilometer = 1,000 meters = 100,000 centimeters = 0.621371 miles = 3,280.84 feet
Common Use Cases
- Reading US road signs or GPS in kilometers overseas.
- Converting race distances for metric training plans.
- Vehicle specs listed in miles vs km range.
- Science and geography homework with mixed units.
Understanding the Conversion
Miles to kilometers helps when US/UK distances need to match metric maps, fitness apps, or international specs. One mile equals exactly 1.609344 kilometers.
Type miles above for precise km results. Useful for marathon training abroad, EV range in km, and comparing speed limits.
FAQs
How do I convert miles to kilometers?
Multiply miles by 1.609344. Example: 3 mi × 1.609344 ≈ 4.83 km.
How many km is 1 mile?
1.609344 kilometers per mile.
How many km is a 5-mile run?
5 × 1.609344 ≈ 8.05 kilometers.