Speed Converter

Convert between all common speed units instantly. Select your units from the dropdowns below and enter a value to see the conversion in real-time.

SI unit: metre per second (m/s)

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Conversion Formula

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About Speed Units

Select units above to see detailed information about them.

Common Speed Conversions

1 m/s = 3.6 km/h = 2.23694 mph = 1.94384 kn = 3.28084 ft/s
1 km/h = 0.27778 m/s = 0.62137 mph = 0.53996 kn
1 mph = 0.44704 m/s = 1.60934 km/h = 0.86898 kn = 1.46667 ft/s
1 kn = 0.51444 m/s = 1.852 km/h = 1.15078 mph
1 ft/s = 0.3048 m/s = 1.09728 km/h = 0.68182 mph = 0.59248 kn
Mach 1 (sea level, 15°C) = 340.29 m/s = 1,225.04 km/h = 661.47 kn
Speed of light (c) = 299,792,458 m/s = 1,079,252,848.8 km/h
Earth escape velocity = 11,186 m/s = 40,270 km/h = 25,020 mph
ISS orbital speed ≈ 7,660 m/s = 27,576 km/h = 17,130 mph
100 km/h = 62.14 mph = 27.78 m/s (common road speed reference)

Direct Converters