Miles per hour → Kilometer per hour (mph → km/h)

mph to km/h direct conversion page with calculator, reverse conversion and comparison table.

1 mph = 1.609344 km/h
1 Miles per hour (mph) = 1.609344 Kilometer per hour (km/h).


swap converter

If you want to reverse convert, use Kilometer per hour → Miles per hour. 1 km/h = 0.62137119223733 mph. You can also explore the full Speed converter page for more cross conversions.

Conversion formula

Miles per hour to Kilometer per hour formula: value in km/h = value in mph × 1.609344.

Kilometer per hour to Miles per hour formula: value in mph = value in km/h × 0.62137119223733.

How to convert Miles per hour to Kilometer per hour

To convert Miles per hour to Kilometer per hour, multiply the value in mph by 1.609344. This gives the result in km/h.

For example, 1 mph = 1.609344 km/h and 10 mph = 16.09344 km/h.

What is Miles per hour?

Miles per hour (mph): Road speed in miles, common in the US and UK. 1 mph = 0.44704 m/s.

What is Kilometer per hour?

Kilometer per hour (km/h): Road and vehicle speed expressed as distance per hour. 3.6 km/h = 1 m/s.

FAQ

How many kilometer per hour are in 1 miles per hour?

There are 1.609344 km/h in 1 mph.

Why can conversion results differ slightly?

Check the unit definition and rounding. US and imperial measures can differ; rounding intermediate values can also change the final digits.

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

Multiply the value in mph by 1.609344 to get the value in km/h.

Miles per hour → other Speed units

Miles per hour → Kilometer per hour Table

The table below shows common values from Miles per hour to Kilometer per hour and the reverse direction for quick reference.

mphkm/hRounded
1 mph1.609344 km/h1.6093
2 mph3.218688 km/h3.2187
3 mph4.828032 km/h4.8280
4 mph6.437376 km/h6.4374
5 mph8.04672 km/h8.0467
10 mph16.09344 km/h16.0934
12 mph19.312128 km/h19.3121
15 mph24.14016 km/h24.1402
20 mph32.18688 km/h32.1869
25 mph40.2336 km/h40.2336
30 mph48.28032 km/h48.2803
40 mph64.37376 km/h64.3738
50 mph80.4672 km/h80.4672
75 mph120.7008 km/h120.7008
100 mph160.9344 km/h160.9344
200 mph321.8688 km/h321.8688
250 mph402.336 km/h402.3360
500 mph804.672 km/h804.6720
750 mph1207.008 km/h1207.0080
1000 mph1609.344 km/h1609.3440
2500 mph4023.36 km/h4023.3600
5000 mph8046.72 km/h8046.7200
10000 mph16093.44 km/h16093.4400

Kilometer per hour → Miles per hour Table

km/hmphRounded
1 km/h0.62137119223733 mph0.6214
2 km/h1.2427423844747 mph1.2427
3 km/h1.864113576712 mph1.8641
4 km/h2.4854847689493 mph2.4855
5 km/h3.1068559611867 mph3.1069
10 km/h6.2137119223733 mph6.2137
12 km/h7.456454306848 mph7.4565
15 km/h9.32056788356 mph9.3206
20 km/h12.427423844747 mph12.4274
25 km/h15.534279805933 mph15.5343
30 km/h18.64113576712 mph18.6411
40 km/h24.854847689493 mph24.8548
50 km/h31.068559611867 mph31.0686
75 km/h46.6028394178 mph46.6028
100 km/h62.137119223733 mph62.1371
200 km/h124.27423844747 mph124.2742
250 km/h155.34279805933 mph155.3428
500 km/h310.68559611867 mph310.6856
750 km/h466.028394178 mph466.0284
1000 km/h621.37119223733 mph621.3712
2500 km/h1553.4279805933 mph1553.4280
5000 km/h3106.8559611867 mph3106.8560
10000 km/h6213.7119223733 mph6213.7119

Kilometer per hour → Miles per hour

The reverse value is 1 km/h = 0.62137119223733 mph.