Mile to Kilometer Formula
The complete formula for converting miles (mi) to kilometers (km). See the formula, how it works, and worked examples below.
mi × 1.609344 = km
How the Formula Works
To convert miles to kilometers, multiply the value by 1.61. This works because 1 mile equals 1.61 kilometers.
Worked Examples
1 mi to km
- Start with 1 mi
- Multiply by 1.609344: 1 × 1.609344 = 1.61
- Result: 1 mi = 1.61 km
5 mi to km
- Start with 5 mi
- Multiply by 1.609344: 5 × 1.609344 = 8.05
- Result: 5 mi = 8.05 km
10 mi to km
- Start with 10 mi
- Multiply by 1.609344: 10 × 1.609344 = 16.09
- Result: 10 mi = 16.09 km
50 mi to km
- Start with 50 mi
- Multiply by 1.609344: 50 × 1.609344 = 80.47
- Result: 50 mi = 80.47 km
100 mi to km
- Start with 100 mi
- Multiply by 1.609344: 100 × 1.609344 = 160.93
- Result: 100 mi = 160.93 km
Reverse Formula: Kilometer to Mile
km × 0.621371 = mi
See the full Kilometer to Mile formula for worked examples.
Related
Frequently Asked Questions
The formula is: mi × 1.609344 = km. See the worked examples above for step-by-step breakdowns, or use the Mile to Kilometer converter for instant results.
10 miles = 16.09 kilometers. Apply the formula: mi × 1.609344 = km.