KM/H to MPH converter

Type a number in kilometres per hour to see it in miles per hour straight away. 1 km/h = 0.621371 mph.

From

Kilometres per hour to miles per hour chart

Pick a type. Length, weight, temperature, volume, area, speed, data size or time.
Type a number. Choose the units on both sides; the answer appears as you type.
See every unit. The table shows your amount in all units at once.

How many miles per hour are in a kilometre per hour?

1 kilometre per hour = 0.621371 miles per hour.

How do I convert kilometres per hour to miles per hour?

To convert kilometres per hour to miles per hour, multiply by 0.621371. For example, 80 km/h = 49.7097 mph.

How do I convert miles per hour back to kilometres per hour?

Use the miles per hour to kilometres per hour converter, or swap the units with the arrow button above.

How many centimetres are in an inch?

Exactly 2.54 centimetres.

How do I convert Celsius to Fahrenheit?

Multiply by 9/5 and add 32. For example 20 °C is 68 °F.

Is a gigabyte 1000 or 1024 megabytes?

Officially 1000 (GB). 1024 is a gibibyte (GiB), which some computers still label GB. Both are listed.