Kilometres to Miles Converter
Convert kilometres to miles and miles to kilometres, with common race distances.
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How to do it
- 1Fill in the boxes
Type your numbers or pick the options you need.
- 2See the result
The answer updates right away as you change a value.
- 3Use it
Copy the result or note it down. Nothing is sent anywhere.
About this tool
Enter a distance and choose the direction. One mile is 1.609344 kilometres, so multiply miles by 1.609 to get kilometres and divide kilometres by 1.609 to get miles. Common running distances in miles are shown for reference.
The formula
Miles = kilometres ÷ 1.609344. Kilometres = miles × 1.609344. A quick mental trick is to multiply kilometres by 0.6, so 100 km is about 60 miles. The exact figure is 62.14 miles.
Common distances
5K is 3.11 miles, 10K is 6.21, a half marathon is 13.11 and a marathon is 26.22 miles.
Speed limits
UK road signs use miles per hour. A 30 mph limit is about 48 km/h, and 70 mph is about 113 km/h.
Frequently asked questions
How many km in a mile?
1.609344 kilometres.
How do I convert quickly?
Multiply kilometres by 0.6 for a close estimate of miles.
What is 10K in miles?
About 6.21 miles.
What is a marathon in km?
42.195 kilometres, which is 26.22 miles.