Convert 1 Mile per Hour to Kilometers per Hour

How fast is 1 mile per hour? What is 1 mile per hour in kilometers per hour? 1 mph to km/h conversion.
1 Mile per Hour =
1.609344 Kilometers per Hour
(exact result)
A mile per hour is a unit of speed commonly used in the United States. It is equal to exactly 1.609344 kilometers per hour.
A kilometer per hour is a unit of speed. Something traveling at one kilometer per hour is traveling about 0.278 meters per second, or about 0.621 miles per hour.
Miles per Hour to Kilometers per Hour Conversions
(some results rounded)
mph km/h
1.00 1.6093
1.01 1.6254
1.02 1.6415
1.03 1.6576
1.04 1.6737
1.05 1.6898
1.06 1.7059
1.07 1.7220
1.08 1.7381
1.09 1.7542
1.10 1.7703
1.11 1.7864
1.12 1.8025
1.13 1.8186
1.14 1.8347
1.15 1.8507
1.16 1.8668
1.17 1.8829
1.18 1.8990
1.19 1.9151
1.20 1.9312
1.21 1.9473
1.22 1.9634
1.23 1.9795
1.24 1.9956
mph km/h
1.25 2.0117
1.26 2.0278
1.27 2.0439
1.28 2.0600
1.29 2.0761
1.30 2.0921
1.31 2.1082
1.32 2.1243
1.33 2.1404
1.34 2.1565
1.35 2.1726
1.36 2.1887
1.37 2.2048
1.38 2.2209
1.39 2.2370
1.40 2.2531
1.41 2.2692
1.42 2.2853
1.43 2.3014
1.44 2.3175
1.45 2.3335
1.46 2.3496
1.47 2.3657
1.48 2.3818
1.49 2.3979
mph km/h
1.50 2.4140
1.51 2.4301
1.52 2.4462
1.53 2.4623
1.54 2.4784
1.55 2.4945
1.56 2.5106
1.57 2.5267
1.58 2.5428
1.59 2.5589
1.60 2.5750
1.61 2.5910
1.62 2.6071
1.63 2.6232
1.64 2.6393
1.65 2.6554
1.66 2.6715
1.67 2.6876
1.68 2.7037
1.69 2.7198
1.70 2.7359
1.71 2.7520
1.72 2.7681
1.73 2.7842
1.74 2.8003
mph km/h
1.75 2.8164
1.76 2.8324
1.77 2.8485
1.78 2.8646
1.79 2.8807
1.80 2.8968
1.81 2.9129
1.82 2.9290
1.83 2.9451
1.84 2.9612
1.85 2.9773
1.86 2.9934
1.87 3.0095
1.88 3.0256
1.89 3.0417
1.90 3.0578
1.91 3.0738
1.92 3.0899
1.93 3.1060
1.94 3.1221
1.95 3.1382
1.96 3.1543
1.97 3.1704
1.98 3.1865
1.99 3.2026