Kilometers to Miles: The Simple Conversion Guide
The exact factor, a 5-second mental trick, and a quick reference table.
Whether it's a car's mileage, a marathon distance or a road trip, km↔mi is the conversion you'll use most.
The exact factor
1 kilometer = 0.621371 miles
1 mile = 1.60934 kilometers
The 5-second mental trick
For km → miles, just multiply by 0.6 (or take 60%). 100 km ≈ 60 miles — close enough for everyday use. For miles → km, multiply by 1.6: 60 miles ≈ 96 km.
Quick reference
- 5 km (5K run) = 3.1 miles
- 10 km = 6.2 miles
- 42.2 km (marathon) = 26.2 miles
- 100 km = 62.1 miles
Need it exact? The converter above handles it — plus weight and temperature.
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