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Miles per hour to Kilometers per hour Converter

Convert miles per hour to kilometers per hour by typing a value: the answer appears as you type. One mph equals 1.60934 km/h, so to go from miles per hour to kilometers per hour you multiply by 1.60934. A table of common values is included below.

Quick examples
mph
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Kilometers per hour64.3738 km/h
The same number of kilometers per hour in miles per hour
24.8548 mph
Miles per hour to kilometers per hour table
Miles per hour (mph)Kilometers per hour (km/h)

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      Formula

      Kilometers per hour = miles per hour × 1.60934
      1 mph = 1.60934 km/h
      1 km/h = 0.621371 mph

      How to use it

      1. Type the number of miles per hour.
      2. Read the result in kilometers per hour.
      3. Open the table for common values, or use the reverse converter to go from kilometers per hour to miles per hour.

      Worked examples

      1 mph in kilometers per hour

      Kilometers per hour
      1.6093 km/h

      50 mph in kilometers per hour

      Kilometers per hour
      80.4672 km/h

      Quick reference

      1 mph = 1.6093 km/h. 5 mph = 8.0467 km/h. 10 mph = 16.093 km/h. 20 mph = 32.187 km/h. 30 mph = 48.28 km/h. 40 mph = 64.374 km/h. 50 mph = 80.467 km/h. 60 mph = 96.561 km/h.

      Good to know

      A knot is one nautical mile per hour, which is exactly 1.852 km/h. To convert km/h to mph in your head, multiply by 0.6; to go from mph to km/h, multiply by 1.6.

      Questions people ask

      How many kilometers per hour are in 1 mph?

      1 mph is 1.60934 km/h.

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

      Multiply by 1.60934. For example, 30 mph × 1.60934 = 48.28 km/h.

      What is 200 mph in kilometers per hour?

      200 mph is 321.87 km/h.

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