Speed Converter

Unit converter

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Speed Converter

Convert between 13 speed units instantly. Select your units from the Builder tab or type a conversion like "100 cm to inches" in the AI input. Every conversion shows the full step-by-step calculation.

This converter covers all standard speed units including metric and imperial systems. Use the reference table below to see how each unit relates to the base unit (meter per second).

Speed units reference

Unit	Symbol	meter per second
Centimeter per Second	cm/s	0.01
Foot per Second	ft/s	0.3048
Furlong per Fortnight	fur/fn	1.663 × 10⁻⁴
Inch per Second	in/s	0.0254
Kilometer per Hour	km/h	0.277778
Kilometer per Second	km/s	1000
Knot	kn	0.514444
Mach	Mach	343
Meter per Second	m/s	1
Mile per Hour	mph	0.44704
Mile per Minute	mi/min	26.8224
Speed of Light	c	299792458
Yard per Second	yd/s	0.9144

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