Miles Per Hour to Meters Per Second
Miles per hour is the standard speed unit on road signs and speedometers in the US and UK. Meters per second is the SI unit of speed, used in physics and to describe wind speed in weather forecasts. 1 mph equals 0.44704 m/s, so converting between them is a matter of multiplying by that fixed factor — type any value into the converter below and both sides update instantly as you type.
Both units belong to speed, measured here against speed's base unit (m/s) — every other speed unit on this site converts through that same reference point, which is why the table below can also be read as a quick cross-check against nearby values.
Formula
m/s = mph × 0.44704
mph = m/s × ≈2.23694
Worked example: 5 mph × 0.44704 = 2.2352 m/s.
Conversion table
| Mile per hour (mph) | Meter per second (m/s) |
|---|---|
| 1 mph | 0.44704 m/s |
| 2 mph | 0.89408 m/s |
| 3 mph | 1.34112 m/s |
| 5 mph | 2.2352 m/s |
| 10 mph | 4.4704 m/s |
| 20 mph | 8.9408 m/s |
| 25 mph | 11.176 m/s |
| 50 mph | 22.352 m/s |
| 100 mph | 44.704 m/s |
| 250 mph | 111.76 m/s |
| 500 mph | 223.52 m/s |
| 1,000 mph | 447.04 m/s |
Frequently asked
- How many Meters per second in a mile per hour?
- 1 mph equals 0.44704 m/s.
- How do I convert Miles per hour to Meters per second?
- Multiply the value in mph by 0.44704 to get m/s. The converter above does this instantly as you type.
- Is the conversion exact?
- Yes — Mile per hour and Meter per second are both defined by a fixed conversion factor to speed's base unit (m/s), so the result shown is exact to the precision displayed, not an approximation.