1 mph = 0.44704 m/s
1 mile per hour equals 0.44704 meters per second. To convert miles per hour to meters per second, multiply the mile per hour value by 0.44704. For quick reference: 1 mph = 0.44704 m/s, 5 mph = 2.2352 m/s, 10 mph = 4.4704 m/s, 100 mph = 44.704 m/s.
Meters per second = Miles per hour × 0.44704Start with your value in miles per hour.
Multiply the mile per hour value by 0.44704. This is the exact conversion factor from miles per hour to meters per second.
The product is your value in meters per second. For example, 5 mph × 0.44704 = 2.2352 m/s.
The exact factor from miles per hour to meters per second is 0.44704.
Meters per second = Miles per hour × 0.44704
Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.
| Miles per hour (mph) | Meters per second (m/s) |
|---|---|
| 1 mph | 0.44704 m/s |
| 2 mph | 0.89408 m/s |
| 3 mph | 1.3411 m/s |
| 4 mph | 1.7882 m/s |
| 5 mph | 2.2352 m/s |
| 6 mph | 2.6822 m/s |
| 7 mph | 3.1293 m/s |
| 8 mph | 3.5763 m/s |
| 9 mph | 4.0234 m/s |
| 10 mph | 4.4704 m/s |
| 12 mph | 5.3645 m/s |
| 15 mph | 6.7056 m/s |
| 18 mph | 8.0467 m/s |
| 20 mph | 8.9408 m/s |
| 22 mph | 9.8349 m/s |
| 25 mph | 11.176 m/s |
| 28 mph | 12.517 m/s |
| 30 mph | 13.411 m/s |
| 32 mph | 14.305 m/s |
| 35 mph | 15.646 m/s |
| 40 mph | 17.882 m/s |
| 45 mph | 20.117 m/s |
| 50 mph | 22.352 m/s |
| 55 mph | 24.587 m/s |
| 60 mph | 26.822 m/s |
| 65 mph | 29.058 m/s |
| 70 mph | 31.293 m/s |
| 75 mph | 33.528 m/s |
| 80 mph | 35.763 m/s |
| 85 mph | 37.998 m/s |
| 90 mph | 40.234 m/s |
| 95 mph | 42.469 m/s |
| 100 mph | 44.704 m/s |
| 110 mph | 49.174 m/s |
| 120 mph | 53.645 m/s |
| 130 mph | 58.115 m/s |
| 140 mph | 62.586 m/s |
| 150 mph | 67.056 m/s |
| 160 mph | 71.526 m/s |
| 180 mph | 80.467 m/s |
| 200 mph | 89.408 m/s |
| 220 mph | 98.349 m/s |
| 250 mph | 111.76 m/s |
| 280 mph | 125.17 m/s |
| 300 mph | 134.11 m/s |
| 350 mph | 156.46 m/s |
| 400 mph | 178.82 m/s |
| 500 mph | 223.52 m/s |
| 700 mph | 312.93 m/s |
| 1000 mph | 447.04 m/s |
US Interstate speed limits are usually 65–75 mph. A 4-minute mile is exactly 15 mph. In meters per second, that gives you: 1 mph = 0.44704 m/s, 10 mph = 4.4704 m/s, 100 mph = 44.704 m/s.
The mile per hour (mph) is the customary speed unit in the United States and the United Kingdom. The conversion 1 mph = 0.44704 m/s is exact, derived from 1 mile = 1609.344 m. A useful mental shortcut: multiply mph by 1.6 to get a close km/h estimate.
The meter per second (m/s) is the SI derived unit of speed. It is the preferred unit in physics, engineering, and any scientific context. The speed of light in vacuum is exactly 299,792,458 m/s, which is how the meter itself is now defined.