Kilometers to Miles
One kilometer equals 0.621371 miles.
Miles = kilometers ÷ 1.609344
Length Conversion Calculator
Common Length Conversions
Length Units Reference
Metric System
- 1 km = 1,000 m
- 1 m = 100 cm
- 1 cm = 10 mm
Imperial System
- 1 mi = 5,280 ft
- 1 yd = 3 ft
- 1 ft = 12 in
Conversions
- 1 in = 2.54 cm
- 1 ft = 0.3048 m
- 1 mi = 1.609 km
Kilometers to Miles Conversion Table
| km | mi |
|---|---|
| 1 | 0.6214 |
| 2 | 1.2427 |
| 3 | 1.8641 |
| 5 | 3.1069 |
| 8 | 4.971 |
| 10 | 6.2137 |
| 15 | 9.3206 |
| 20 | 12.4274 |
| 21.0975 | 13.1094 |
| 42.195 | 26.2188 |
| 50 | 31.0686 |
| 80 | 49.7097 |
| 100 | 62.1371 |
| 160 | 99.4194 |
| 200 | 124.2742 |
About This Conversion
Kilometers to miles is the conversion that road signs, running distances and car odometers force on anyone travelling between metric and imperial countries. One mile is exactly 1,609.344 m, so a kilometer is 0.621371 miles.
Running is where the numbers are worth memorising outright, because race distances are fixed: 5 km is 3.11 miles, 10 km is 6.21 miles, a half marathon is 13.11 miles and a marathon is 26.22 miles. The convenient coincidence is that the ratio is close to the golden ratio, so consecutive Fibonacci numbers approximate the conversion: 5 km is about 3 miles, 8 km about 5, 13 km about 8.
Frequently Asked Questions
How many miles is 1 km?
One kilometer is 0.621371 miles, so roughly five-eighths of a mile.
How many miles is 5 km?
5 km is 3.107 miles, the standard park run and fun run distance.
How many miles is a marathon?
A marathon is 42.195 km, which is 26.219 miles.
What is 100 km/h in miles?
As a distance, 100 km is 62.14 miles. As a speed, 100 km/h is 62.14 mph.
Worth Knowing
Nautical Mile vs Mile
A nautical mile is 1,852 metres, about 15 percent longer than the statute mile of 1,609.344 metres, and equals one minute of latitude.
Height Conversion Chart
170 cm is 5 ft 6.9 in, 175 cm is 5 ft 8.9 in, and 180 cm is 5 ft 10.9 in.