Kilometers to Miles Conversion Chart
Quick-reference chart converting kilometers (km) to miles (mi). Covers 0.5 km to 1,000 km — for driving distances, running events, and speed limits.
For a custom value not in this chart, use the interactive Kilometer to Mile converter.
| Kilometer (km) | Mile (mi) |
|---|---|
| ½ km | 0.310686 mi |
| 1 km | 0.621371 mi |
| 2 km | 1.24274 mi |
| 3 km | 1.86411 mi |
| 5 km | 3.10686 mi |
| 10 km | 6.21371 mi |
| 15 km | 9.32057 mi |
| 20 km | 12.4274 mi |
| 25 km | 15.5343 mi |
| 30 km | 18.6411 mi |
| 40 km | 24.8548 mi |
| 42.195 km | 26.2188 mi |
| 50 km | 31.0686 mi |
| 60 km | 37.2823 mi |
| 70 km | 43.496 mi |
| 80 km | 49.7097 mi |
| 90 km | 55.9234 mi |
| 100 km | 62.1371 mi |
| 120 km | 74.5645 mi |
| 150 km | 93.2057 mi |
| 200 km | 124.274 mi |
| 300 km | 186.411 mi |
| 400 km | 248.548 mi |
| 500 km | 310.686 mi |
| 1000 km | 621.371 mi |
Conversion Formula
mi = km × 0.621371 (= km ÷ 1.609344) 1 km = 0.621371 mi 1 mi = 1.609344 km (exact) Key running distances: 5 km = 3.107 mi (5K) 10 km = 6.214 mi (10K) 21.098 km = 13.109 mi (half marathon) 42.195 km = 26.219 mi (marathon) EU speed limits → mph: 50 km/h = 31.1 mph (urban limit) 80 km/h = 49.7 mph (rural road) 100 km/h = 62.1 mph (common highway) 120 km/h = 74.6 mph (motorway, many EU countries) 130 km/h = 80.8 mph (motorway, France/Italy/Spain) Quick estimate: km ÷ 1.6 ≈ mi (within 0.6%)
Frequently Asked Questions
How many miles is 1 km?
1 kilometer equals approximately 0.621 miles. A quick mental reference: 5 km = about 3.1 miles. To estimate km to miles, multiply by 0.6 for a close enough result.
How many miles is 10 km?
10 kilometers equals approximately 6.214 miles. The 10K is one of the most common running race distances. If you run a 10K in 60 minutes, your pace is about 9:40 per mile or 6:00 per kilometer.
How many miles is a marathon (42.195 km)?
A marathon is 42.195 kilometers, which equals exactly 26.2188 miles — typically written as 26.2 miles. The marathon distance is defined in kilometers internationally.
How many miles per hour is 100 km/h?
100 km/h × 0.621371 = 62.14 mph. The 100 km/h speed limit common on European highways is just over 62 mph — well below a typical US interstate speed of 65–70 mph.
How many miles is 5 km?
5 × 0.621371 = 3.107 miles — just over 3.1 miles. The 5K race is one of the most popular running events. Divide any km value by 1.6 for a quick mile estimate.
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This chart covers common values. For any number, use the interactive converter.
Use the interactive converter →All conversion values are calculated using internationally recognized conversion factors. Results are provided for general informational purposes — verify critical values independently. Read our full disclaimer.