Kilometer to Mile Formula
The complete formula for converting kilometers (km) to miles (mi). See the formula, how it works, and worked examples below.
km × 0.621371 = mi
How the Formula Works
To convert kilometers to miles, divide the value by 1.61 (or multiply by 0.6214). This works because 1 kilometer equals 0.6214 miles.
Worked Examples
1 km to mi
- Start with 1 km
- Multiply by 0.621371: 1 × 0.621371 = 0.6214
- Result: 1 km = 0.6214 mi
5 km to mi
- Start with 5 km
- Multiply by 0.621371: 5 × 0.621371 = 3.11
- Result: 5 km = 3.11 mi
10 km to mi
- Start with 10 km
- Multiply by 0.621371: 10 × 0.621371 = 6.21
- Result: 10 km = 6.21 mi
50 km to mi
- Start with 50 km
- Multiply by 0.621371: 50 × 0.621371 = 31.07
- Result: 50 km = 31.07 mi
100 km to mi
- Start with 100 km
- Multiply by 0.621371: 100 × 0.621371 = 62.14
- Result: 100 km = 62.14 mi
Reverse Formula: Mile to Kilometer
mi × 1.609344 = km
See the full Mile to Kilometer formula for worked examples.
Related
Frequently Asked Questions
The formula is: km × 0.621371 = mi. See the worked examples above for step-by-step breakdowns, or use the Kilometer to Mile converter for instant results.
10 kilometers = 6.21 miles. Apply the formula: km × 0.621371 = mi.