UnitSnapKilometers to Miles
1 km = 0.6213712 mi
Kilometers to miles helps American and British runners understand metric race distances, and helps drivers make sense of road signs and rental-car maps abroad. Most of the world posts distances in kilometers, so visitors from mile-using countries convert often. A kilometer is a bit more than six-tenths of a mile.
When you need to convert kilometers to miles
- Understanding 5K, 10K, and marathon race distances in miles
- Reading road signs and GPS directions while driving in Europe, Canada, or Australia
- Converting a cycling route or fitness tracker summary set to kilometers
- Comparing electric-car range figures published in kilometers
How to convert kilometers to miles
mi = km × 0.6213712
Example: 5 km = 3.106856 mi
Common distances in kilometers
| Kilometers (km) | Miles (mi) |
|---|---|
| 1 km | 0.6213712 mi |
| 3 km | 1.864114 mi |
| 5 km | 3.106856 mi |
| 10 km | 6.213712 mi |
| 15 km | 9.320568 mi |
| 21.1 km | 13.11093 mi |
| 42.2 km | 26.22186 mi |
| 50 km | 31.06856 mi |
| 100 km | 62.13712 mi |
Tips for converting kilometers to miles
- Multiply kilometers by 5 and divide by 8 for a mental estimate within about 1% of the exact figure.
- Multiplying by 0.62 is also accurate. Multiplying by 0.6 alone runs roughly 3% low, so it understates longer distances.
- Speed signs in km/h use the same factor, so the same shortcut works for converting speed limits to mph.
Kilometers to Miles conversion table
| Kilometers (km) | Miles (mi) |
|---|---|
| 1 km | 0.6213712 mi |
| 2 km | 1.242742 mi |
| 3 km | 1.864114 mi |
| 4 km | 2.485485 mi |
| 5 km | 3.106856 mi |
| 6 km | 3.728227 mi |
| 7 km | 4.349598 mi |
| 8 km | 4.97097 mi |
| 9 km | 5.592341 mi |
| 10 km | 6.213712 mi |
| 15 km | 9.320568 mi |
| 20 km | 12.42742 mi |
| 25 km | 15.53428 mi |
| 30 km | 18.64114 mi |
| 40 km | 24.85485 mi |
| 50 km | 31.06856 mi |
| 75 km | 46.60284 mi |
| 100 km | 62.13712 mi |
| 250 km | 155.3428 mi |
| 500 km | 310.6856 mi |
| 1,000 km | 621.3712 mi |
About the units
Kilometers: The kilometer is a metric unit of length equal to 1,000 meters, used for road distances and maps in most countries.
Miles: The mile is an imperial and US customary unit of length equal to 5,280 feet, or exactly 1,609.344 meters. It is used for road distances in the US and UK.
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Frequently asked questions
How many miles are in 1 kilometer?
1 kilometer equals 0.6213712 miles.
How many kilometers are in 1 mile?
1 mile equals 1.609344 kilometers.
How do I convert kilometers to miles?
Use the formula mi = km × 0.6213712.
What is 10 kilometers in miles?
10 kilometers equals 6.213712 miles.
Related conversions
Factors: NIST SP 811 · SI Brochure · NIST Handbook 44 — Updated