Converters
Speed Converter
Convert speed between km/h, mph, m/s, ft/s and knots instantly.
About the Speed Converter
A speed converter switches between the units used for vehicles, sports, aviation and physics. Compare a car's km/h with mph, or a wind speed in knots with metres per second.
Enter a value, choose your units, and get an accurate conversion.
How to use the Speed Converter
- Enter a value.
- Select the from unit.
- Select the to unit.
- Click Convert.
How the calculation works
m/s = value × factor(from) · result = m/s ÷ factor(to)
Example
100 km/h equals about 62.14 mph or 27.78 metres per second.
Frequently asked questions
Metres per second, kilometres per hour, miles per hour, feet per second and knots.
About 62.14 mph; the converter gives the exact figure for any speed.
A knot is one nautical mile per hour, used in maritime and aviation contexts.
Yes, select metres per second as the from unit and kilometres per hour as the to unit.