Unit conversion
Standalone tool pageSpeed Converter
Convert speed between km/h, mph, m/s, knots, and feet per second.
Output
Result
km/h
—
mph
—
m/s
—
How It Works
Each unit has a conversion factor to meters per second. Results are calculated from that shared base value.
Example
100 km/h equals about 62.14 mph and 27.78 m/s.
Frequently Asked Questions
What speed units are supported?
Kilometers per hour, miles per hour, meters per second, knots, and feet per second.
What is the base unit?
The tool converts the input to meters per second first, then converts to the other units.
How precise are the conversions?
Conversions use standard factors and rounded display values. Keep more decimal places if you need engineering or scientific precision.
Are local unit differences included?
Only the units labeled in the tool are included. Some regions use different definitions for cups, gallons, tons, or other units.