Miles to KM Converter
Convert mile to kilometer instantly. 1 mi = 1.609344 km, worked steps and a full reference table.
How to use it
- Type the value in mile — 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 mi | 1.609344 km |
| 5 mi | 8.04672 km |
| 10 mi | 16.09344 km |
| 100 mi | 160.9344 km |
One mile equals 1.609344 kilometers (km). To convert miles to kilometers, multiply by 1.609344; to go back the other way, multiply by 0.62137119 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 miles and kilometers actually measure
Mile (mi) — A mile is 5,280 feet, or exactly 1.609344 kilometres. Road distances and speed limits in the US and UK.
Kilometer (km) — A kilometre is a thousand metres. Road distances, running events and map scales outside the US and UK.
Miles to KM conversion table
The most common values, worked out in advance. Anything not listed can be typed straight into the converter.
| mi | km |
|---|---|
| 1 mi | 1.609344 km |
| 2 mi | 3.218688 km |
| 5 mi | 8.04672 km |
| 10 mi | 16.09344 km |
| 25 mi | 40.2336 km |
| 50 mi | 80.4672 km |
| 100 mi | 160.9344 km |
How to convert miles to kilometers by hand
Multiply the number of miles by 1.609344.
For example, 25 mi × 1.609344 = 40.2336 km.
Going the other way, divide by 1.609344 — or multiply by 0.62137119, 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 km are in 1 mi?
1 mi equals exactly 1.609344 km. Multiply any value in mile by 1.609344 to get kilometer.
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.
Last updated 18 August 2026