Miles to KM Converter

How to convert miles to kilometres

To convert miles to kilometres, multiply by 1.6093. One mile equals exactly 1.609344 kilometres, because a mile is 5,280 feet and each foot is 0.3048 metres. The converter above works instantly in both directions.

For example, 10 miles × 1.6093 = 16.09 km. To estimate in your head, add about 60%: 10 miles → 10 + 6 = 16 km. The Fibonacci trick also works in reverse — 5 miles ≈ 8 km, 8 miles ≈ 13 km.

Where you’ll use miles to kilometres

People converting miles to kilometres are usually taking a US or UK distance into the metric units used elsewhere. Common situations:

• Travel: a US or UK traveller working out how far a journey in miles is in the kilometres shown abroad.
• Running events: converting a distance planned in miles into the kilometres used by most race organisers and GPS watches.
• Speed limits: a 60 or 70 mph limit expressed in km/h (the same factor applies to speed).
• Fuel economy and logistics: comparing mileage figures with metric distances.
• School and science: converting imperial distances into SI units for homework.

Miles and kilometres: what each unit is

The mile (statute mile) is an imperial and US customary unit equal to 5,280 feet, defined as exactly 1.609344 kilometres. The kilometre is a metric unit of 1,000 metres. Because the mile is legally tied to the metre, the conversion is exact and only the shown decimals are rounded.

Miles to Kilometres conversion table

Common speed limits in mph and km/h

Worked examples

Frequently asked questions