Miles to KM Converter

Type a number of miles and this converter shows the answer in kilometers instantly (1 mi = 1.60934 km). Below the converter you will find a ready-made mi to km table, and further down the formula with a worked example.

Miles are the road-distance unit in the United States and the United Kingdom. Converting to kilometers is useful when planning a road trip with a metric map or GPS, comparing a car’s range quoted in miles, translating a marathon (26.2 miles) or ultra distance, or understanding flight distances, which are often given in statute or nautical miles.

How to use the Miles to KM tool

1. Enter the value in miles in the Value box. Decimals such as 13.6 are fine.
2. The result in kilometers appears straight away, rounded to six significant digits.
3. Check the formula line under the result to see exactly how it was calculated.
4. Press ⇄ to convert kilometers back to miles, or pick any other unit from the lists.
5. Use Copy result, or look up common values in the conversion table.

Why use ToolOrca Miles to KM

• Exact factor: 1 mi = 1.60934 km
• Conversion table: mi to km
• Formula and worked example included
• Instant result as you type
• Converts to every other length unit too
• Free, private and works offline

How to convert miles to kilometers

One international mile is 5,280 feet, which is exactly 1,609.344 meters. A kilometer is exactly 1,000 meters. So 1 mi = 1.609344 km exactly, and 1 km = 0.621371192 mi.

To convert miles to kilometers, multiply the number of miles by 1.609344.

Worked example: 26.2 mi × 1.609344 = 42.1648 km.

Quick mental math for mi to km

Multiply by 1.6: 10 miles × 1.6 = 16 km (exact 16.09). For a mental shortcut, add half and then a tenth: 50 + 25 + 5 = 80 km for 50 miles (exact 80.47).

Need the opposite direction? Use the kilometers to miles converter, or switch units with the ⇄ button above.