INTERACTIVE CALCULATOR
Speed converter
Convert km/h, m/s, mph and knots.
UNDERSTAND YOUR NUMBERS
How to read your result
A worked example
90 km/h equals 25 m/s because an hour contains 3,600 seconds and a kilometre contains 1,000 metres.
How it is calculated
Fixed factors convert distance per unit of time. Divide km/h by 3.6 to obtain m/s.
Common mistakes and limitations
A speed conversion does not predict an arrival time. Real journeys may involve changing speeds and stops.
Content by Numelva · Methods, sources and limitations ↗