Mile to Kilometer
Convert mile (mi) to kilometer (km) instantly. Switch between metric and imperial in a tap.
Mile → Kilometer
1.6093
km
1 mi = 1.6093 km
Frequently asked questions
Exactly 1.609344 kilometres. The figure is exact by definition, since a mile is 5,280 feet and a foot is exactly 0.3048 metres.
About 112.7 km/h. The UK motorway limit of 70 mph is therefore slightly above the 110 km/h common on Indian expressways. A quick mental method is to add 60% — 70 plus 42 gives 112, close enough for road use.
It depends which gallon is meant, and the difference is about 20%. With the US gallon of 3.785 litres, 1 mpg is 0.425 km/L, so 30 mpg is 12.75 km/L. With the imperial gallon of 4.546 litres, 1 mpg is 0.354 km/L, so 30 mpg is 10.62 km/L. American reviews use the US gallon and British ones the imperial.
Multiply by 1.609344
A mile is exactly 1.609344 kilometres, so converting to kilometres is a straightforward multiplication.
Kilometres = miles × 1.609344
The figure is exact by definition: a mile is 5,280 feet, and a foot is exactly 0.3048 metres.
When Indian readers need this direction
Almost always when consuming American or British material and wanting a figure that means something locally.
Car specifications — a US review quoting a range in miles, or a 0–60 mph acceleration figure. Note that an EV range quoted in miles needs converting before it can be compared against an Indian manufacturer's kilometre figure, and the test cycles behind them differ too.
Running and fitness — training plans written in miles, and race distances described that way. Marathon and half-marathon distances are defined in kilometres and merely reported in miles.
Travel — American road-trip distances, UK motorway signage, and rental car odometers.
Aviation and shipping, where distances may be quoted in nautical miles rather than statute miles, which is a different unit again.
Common values
- 1 mi = 1.61 km
- 3.1 mi = 5 km
- 5 mi = 8.05 km
- 6.2 mi = 10 km
- 10 mi = 16.09 km
- 26.2 mi = 42.2 km — a marathon
- 100 mi = 160.93 km
Speeds
- 30 mph ≈ 48 km/h — a common urban limit
- 50 mph ≈ 80 km/h
- 60 mph ≈ 97 km/h
- 70 mph ≈ 113 km/h — the UK motorway limit
- 80 mph ≈ 129 km/h
The mental method: add 60%, or multiply by 1.6. For 70 mph: 70 + 42 = 112 km/h against an exact 112.7.
The Fibonacci trick works in reverse too — 8 mi ≈ 13 km, 13 mi ≈ 21 km, 21 mi ≈ 34 km.
Miles per gallon is not a simple conversion
A related figure that catches people out. Converting mpg to km/L requires knowing which gallon is meant:
- US gallon = 3.785 litres, so 1 mpg = 0.425 km/L
- Imperial gallon = 4.546 litres, so 1 mpg = 0.354 km/L
A car rated at 30 mpg is therefore 12.75 km/L on the US measure and 10.62 km/L on the imperial one — a difference of about 20% from the same headline number. American reviews use the US gallon; British ones use the imperial. Getting this wrong makes a foreign car look substantially more or less efficient than it is.