Kilometers to Miles Converter

Kilometers to Miles Converter

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Formula: multiply kilometers by 0.62137 to get miles

How to convert kilometers to miles

To convert kilometers to miles, multiply the number of kilometers by 0.62137. For example, 10 km × 0.62137 = 6.214 miles. Going the other way, multiply miles by 1.60934 to get kilometers.

A quick mental estimate: multiply km by 0.6, or divide by 1.6. So 10 km ÷ 1.6 = 6.25 miles. This is accurate to within 1% and works well for everyday use.

Kilometers are used in most countries for road distances and speed limits. Miles are used in the United States, United Kingdom, and a few other countries. This conversion is essential for international travel, running races, and reading foreign maps.

Kilometers to miles conversion table

Kilometers (km) Miles (mi) Feet (ft)
1 km0.621 mi3280.84 ft
2 km1.243 mi6561.68 ft
5 km3.107 mi16404.2 ft
10 km6.214 mi32808.4 ft
20 km12.427 mi65616.8 ft
21.1 km (half marathon)13.109 mi69225 ft
42.2 km (marathon)26.219 mi138451 ft
50 km31.069 mi164042 ft
100 km62.137 mi328084 ft
1000 km621.371 mi3280840 ft

Frequently asked questions

How many miles is 1 km?
1 kilometer = 0.62137 miles. For a quick estimate, 1 km ≈ 0.6 miles.
How many miles is 5 km?
5 km = 3.107 miles. A 5K race is approximately 3.1 miles long.
How many miles is 10 km?
10 km = 6.214 miles. A 10K race is approximately 6.2 miles long.
How many miles is 100 km?
100 km = 62.137 miles. Calculation: 100 × 0.62137 = 62.14 miles.
How do I convert km/h to mph?
Multiply km/h by 0.62137 to get mph. So 100 km/h = 62.14 mph. This is the same conversion factor as kilometers to miles since both are distance per hour.