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Speed
Miles per hour to Meters per second
Convert miles per hour (mph) to meters per second (m/s). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 mph = 0.44704 m/s
Miles per hour to Meters per second Conversion Table
Common values, ready to copy:
| miles per hour | meters per second |
|---|---|
| 1 mph | 0.44704 m/s |
| 2 mph | 0.89408 m/s |
| 5 mph | 2.2352 m/s |
| 10 mph | 4.4704 m/s |
| 25 mph | 11.176 m/s |
| 50 mph | 22.352 m/s |
| 100 mph | 44.704 m/s |
| 1,000 mph | 447.04 m/s |
Formula
meters per second = miles per hour × 0.44704
Speed is distance per unit time. 1 m/s = 3.6 km/h. 1 mph = 1.609344 km/h. 1 knot = 1.852 km/h (one nautical mile per hour).
About Miles per hour and Meters per second
Miles per hour (mph): Derived from the mile (1,609.344 m exactly) and the hour; conventional speed unit in the US, UK, and a handful of other countries. Common uses: US road speed limits, US sports speeds (baseball pitches in mph), UK road signs, and most US vehicle dashboards.
Meters per second (m/s): The SI derived unit for speed (distance / time); 1 m/s = 3.6 km/h. Common uses: Physics and engineering calculations, wind speed in meteorology, sports analytics (sprint speeds), and any context where speed feeds into other equations.
How the conversion works
Speed is distance per unit time. 1 m/s = 3.6 km/h. 1 mph = 1.609344 km/h. 1 knot = 1.852 km/h (one nautical mile per hour).
The exact relationship is meters per second = miles per hour × 0.44704, which the calculator at the top of this page applies in both directions. Type into either field and the other updates immediately.
When this conversion matters
Converting between miles per hour and meters per second comes up wherever speed measurements move between systems — from one country's conventions to another's, from a scientific reference to a practical specification, or from one industry's working unit to another's. The calculator and reference table above cover the everyday range; for unusual values you can type any number into either field.