Conversion
Speed Converter
Convert speed between m/s, km/h, mph, knots and ft/s.
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Convert speeds between metric, imperial and nautical units.
The math behind it
Each unit is expressed in meters per second, then divided by the target unit. 1 mph = 0.44704 m/s.
Worked Example
100 km/h to mph → 100 × 0.277778 ÷ 0.44704 = 62.1 mph.
Frequently Asked Questions
How fast is a knot?
1 knot = 1 nautical mile per hour ≈ 1.15 mph ≈ 1.852 km/h.
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