Meters per Second to Miles per Hour (m/s to mph)
There are 3,600 seconds in an hour and the international mile is exactly 1,609.344 m (NIST SP 811, from the 1959 yard agreement), so 1 m/s = 3,600 ÷ 1,609.344 = 2.236936 mph. Multiply by 2.24 — or, roughly, double it and add 10% — to go from meters per second to mph.
Formula
mph = m/s × 2.236936 (= m/s × 3,600 ÷ 1,609.344)
Example: 4 meters per second = 8.94775 miles per hour.
Meters per Second to Miles per Hour chart
| meters per second | miles per hour |
|---|---|
| 1 | 2.23694 |
| 2 | 4.47387 |
| 3 | 6.71081 |
| 4 | 8.94775 |
| 5 | 11.1847 |
| 8 | 17.8955 |
| 10 | 22.3694 |
| 12 | 26.8432 |
| 15 | 33.554 |
| 20 | 44.7387 |
| 25 | 55.9234 |
| 30 | 67.1081 |
| 32.7 | 73.1478 |
| 40 | 89.4775 |
| 50 | 111.847 |
| 100 | 223.694 |
| 343 | 767.269 |
Good to know
Wind: weather services outside the US and many weather apps report wind in m/s. A fresh breeze of 10 m/s is 22.4 mph; 20 m/s is 44.7 mph, a gale; anything above 32.7 m/s (73 mph) is hurricane force on the Beaufort scale.
Running and sport: Usain Bolt's 9.58 s 100 m world record averages 10.44 m/s — 23.35 mph — and his top speed was about 12.4 m/s (27.7 mph). A 4 m/s jog is 8.9 mph, about a 6:42 per mile pace.
Physics homework: answers in m/s are the SI standard. The speed of sound in air at 20 °C is about 343 m/s, which is 767 mph; a ball dropped for 1 second reaches 9.81 m/s (21.9 mph). Keep m/s through the calculation and convert only the final answer.
Frequently asked questions
How many mph is 1 m/s?
1 meter per second is 2.236936 mph.
What is 10 m/s in mph?
10 m/s is 22.37 mph.
How do I convert mph to m/s?
Divide mph by 2.236936 (or multiply by 0.44704, which is exact). 60 mph is 26.82 m/s.
Is m/s or km/h faster?
1 m/s is 3.6 km/h, so a meter per second is the faster unit. 10 m/s = 36 km/h = 22.37 mph.