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Miles per Hour to Kilometers per Hour converter

Convert mph to km/h instantly. Type any value and get the result in kilometers per hour. 1 mph = 1.60934 km/h.

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Speed›mph → km/h
From
To
result below ↓
1 mph=
1.60934km/h
formula1 mph = 1.60934 km/h

Common miles per hour → kilometers per hour

=1.60934 km/h
=3.21869 km/h
=8.04671 km/h
=16.0934 km/h
=32.1869 km/h
=80.4671 km/h
=160.934 km/h
=804.671 km/h
=1,609.34 km/h

Need a different value? .

Convert the other way
Kilometers per Hour to Miles per Hour

How to convert miles per hour to kilometers per hour

To convert miles per hour to kilometers per hour, multiply the value by 1.60934.

Formula
km/h = mph × 1.60934

For example:

  • →5 mph = 8.04671 km/h
  • →100 mph = 160.934 km/h

Quick reference

  • ▸1 mph = 1.60934 km/h
  • ▸1 km/h = 0.621372 mph

When you need to convert mph to km/h

  • ·Driving — speed limits abroad use different units.
  • ·Running and cycling — comparing GPS-tracked paces.
  • ·Aviation and sailing — knots vs km/h vs mph.
  • ·Sports — converting record times to speed.
  • ·Physics — exam and homework problems.

Frequently asked

How many kilometers per hour are in 1 miles per hour?
One miles per hour equals 1.60934 kilometers per hour.
How do I convert mph to km/h in my head?
Multiply the value in miles per hour by 1.60934 to get kilometers per hour.
What is the formula for miles per hour to kilometers per hour?
km/h = mph × 1.60934.
What is the reverse — how many miles per hour in 1 kilometers per hour?
One kilometers per hour equals 0.621372 miles per hour.

Related conversions

Kilometers per Hour to Miles per Hour
1 km/h = 0.621372 mph
Miles per Hour to Meters per Second
1 mph = 0.44704 m/s
Miles per Hour to Knots
1 mph = 0.868977 kn
Miles per Hour to Feet per Second
1 mph = 1.46667 ft/s
Meters per Second to Kilometers per Hour
1 m/s = 3.6 km/h
Knots to Kilometers per Hour
1 kn = 1.852 km/h
Feet per Second to Kilometers per Hour
1 ft/s = 1.09728 km/h
Kilometers per Hour to Meters per Second
1 km/h = 0.277778 m/s
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