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KM to Miles Converter

Convert kilometer to mile instantly. 1 km = 0.6213711922 mi, worked steps and a full reference table.

Formula
mi = km × 0.6213711922

How to use it

  • Type the value in kilometer — the result updates as you type.
  • Use Swap to flip the direction, or change either dropdown to convert between any two units.
  • Click the result to copy it. The URL updates too, so you can bookmark or share the exact conversion.

Examples

1 km0.6213711922 mi
5 km3.106855961 mi
10 km6.213711922 mi
100 km62.13711922 mi

One kilometer equals 0.62137119 miles (mi). To convert kilometers to miles, multiply by 0.62137119; to go back the other way, multiply by 1.609344 instead.

The converter above does it as you type and shows the working underneath, so you can check the arithmetic rather than take the number on trust.

What kilometers and miles actually measure

Kilometer (km) — A kilometre is a thousand metres. Road distances, running events and map scales outside the US and UK.

Mile (mi) — A mile is 5,280 feet, or exactly 1.609344 kilometres. Road distances and speed limits in the US and UK.

KM to Miles conversion table

The most common values, worked out in advance. Anything not listed can be typed straight into the converter.

kmmi
1 km0.62137119 mi
2 km1.2427424 mi
5 km3.106856 mi
10 km6.2137119 mi
25 km15.53428 mi
50 km31.06856 mi
100 km62.137119 mi

How to convert kilometers to miles by hand

Multiply the number of kilometers by 0.62137119.

For example, 25 km × 0.62137119 = 15.53428 mi.

Going the other way, divide by 0.62137119 — or multiply by 1.609344, which is the same thing and easier to do in your head.

Everything runs in your browser

There is no server involved in the calculation. The numbers you type never leave your device, nothing is logged, and the page keeps working with no connection once it has loaded. That is not a marketing line — it is simply how the tool is built, because a calculation like this has no reason to touch a network.

Questions people ask

How many mi are in 1 km?

1 km equals exactly 0.6213711922 mi. Multiply any value in kilometer by 0.6213711922 to get mile.

Is anything uploaded to a server?

No. The whole calculation happens in your browser. Nothing is sent anywhere, and the page keeps working offline once loaded.

Runs entirely in your browser. Nothing you type is uploaded, logged or shared.

Last updated 18 August 2026