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Length km to miles

Convert kilometres to miles, with metres and nautical miles for reference.

Built and maintained by The NumberPrism Editorial TeamEditorial policy

Your details

km
Results update as you type. The formula and assumptions are explained below the calculator.

Miles

6.214 mi

Metres10,000 m
Feet32,808 ft
Nautical miles5.4 nmi
Round-trip kilometres20 km

The mile is defined as exactly 1,609.344 metres. Kilometre and mile figures are rounded only for display.

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How to convert kilometres to miles

Divide the distance by 1.609344.

1

Enter kilometres

Use the distance from a map, odometer or race listing.

2

Choose the trip type

A return trip doubles the distance before conversion.

3

Read miles

The result is in statute miles, not nautical miles.

What does this tool do?

One mile is exactly 1.609344 kilometres. Use the trip toggle to double the distance for a return journey, which is handy for fuel and travel planning.

The Formula

Miles = kilometres ÷ 1.609344

Frequently Asked Questions

How many miles is a 10K?

10 km ÷ 1.609344 = 6.21 miles.

Is a nautical mile the same as a mile?

No. A nautical mile is 1,852 metres, while a statute mile is 1,609.344 metres.