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Calculators/Speed Converter

Speed Converter

Convert between mph, km/h, m/s, knots, and ft/s.

1 mph = 1.609344 km/h

Miles per Hour (mph)Kilometers per Hour (km/h)
11.609344
23.218688
58.04672
1016.09344
1524.14016
2032.18688
2540.2336
5080.4672
75120.7008
100160.9344
150241.4016
200321.8688
250402.336
500804.672
1,0001,609.344

Speed Conversion Reference

FromTo
1 mph1.609 km/h
1 km/h0.621 mph
1 knot1.151 mph / 1.852 km/h
1 m/s2.237 mph / 3.6 km/h
Speed of light299,792 km/s

Speed in Everyday Context

Walking speed is roughly 3 mph (5 km/h). A casual cyclist moves at about 15 mph (24 km/h). Highway driving in the US is typically 60–70 mph (97–113 km/h). The speed of sound is 767 mph (1,235 km/h) — that's Mach 1.

Runners often track their pace in minutes per mile or minutes per kilometer rather than speed. For race pacing and training calculations, use our Pace Calculator.