Kilometres to miles converter
Type a distance in kilometres and see at once how many miles that is. With the option above the field, the tool also converts from miles to kilometres.
In kilometres or in miles, depending on your choice. 1 mile is 1.609344 km.
Fill in the fields; the answer appears here straight away.
How it's worked out
How it works
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Enter the values
Type the numbers or the formula. Decimals may use a point or a comma. No idea? Click Fill in an example.
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Instant answer
The answer appears as you type, with the most important intermediate values.
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See the working
Under "How it's worked out" you see the steps, handy for checking your own calculation.
The formula
One mile is exactly 1.609344 kilometres. So:
- km to miles: divide by 1.609344 (or multiply by 0.621371)
- miles to km: multiply by 1.609344
10 km is 10 รท 1.609344 = 6.2137 miles. This is the international mile, as used in the United States and the United Kingdom. A nautical mile (1.852 km) is something else.
Conversion table
| km | mi | |---|---| | 1 km | 0.62 mi | | 5 km | 3.11 mi | | 10 km | 6.21 mi | | 21.1 km | 13.11 mi | | 42.2 km | 26.22 mi | | 50 km | 31.07 mi | | 100 km | 62.14 mi | | 200 km | 124.27 mi | | 500 km | 310.69 mi | | 1,000 km | 621.37 mi |
A rule of thumb
Multiply the kilometres by 0.6 for a quick estimate of the miles: 100 km is about 60 miles (exactly 62.1). A marathon of 42.195 km is 26.2 miles.
Frequently asked questions
Is the kilometres to miles free?
Yes. The kilometres to miles is completely free, with no account, sign-up or usage limit.
How accurate is the result?
The tool calculates with your browser's number precision. For important calculations, always double-check what you entered.
Does it work on my phone?
Yes. The tool works in any modern browser on a phone, tablet or computer.