Convert Metres per Second to Miles per Hour
Convert Metres per Second (m/s) to Miles per Hour (mph) instantly and accurately.
Conversion Formula
mph = m/s × 2.236936292
About Metres per Second
The metre per second (m/s) is the SI unit of speed. Brisk walking ~1.4 m/s; Usain Bolt's peak sprint ~12.4 m/s; speed of sound in air at 20°C 343.2 m/s; in water 1,481 m/s. Rifle muzzle velocities 370-1,200 m/s. Speed of light = exactly 299,792,458 m/s (the defined constant from which the metre is derived since 1983). 1 m/s = 3.6 km/h = 2.23694 mph = 1.94384 kn.
About Miles per Hour
A mile per hour (mph) = exactly 0.44704 m/s - the primary road speed unit in the US, UK, and a few other countries. US interstate limits 65-85 mph; UK motorway 70 mph. Walking ~3-4 mph; club cycling 20-25 mph. MLB elite fastball 100 mph (44.7 m/s). Saffir-Simpson Category 5 hurricane ≥157 mph. Boeing 737 MAX cruises at ~521 mph (Mach 0.79). 1 mph = 0.44704 m/s = 1.60934 km/h = 0.86898 kn.
Quick Reference Table
| Metres per Second (m/s) | Miles per Hour (mph) |
|---|---|
| 1 m/s | 2.23694 mph |
| 2 m/s | 4.47387 mph |
| 5 m/s | 11.1847 mph |
| 10 m/s | 22.3694 mph |
| 25 m/s | 55.9234 mph |
| 50 m/s | 111.847 mph |
| 100 m/s | 223.694 mph |