MPH to Meters per Second Conversion Chart
Quick-reference chart converting miles per hour (mph) to meters per second (m/s). Covers 1–760 mph — for physics, engineering, athletics, and scientific calculations.
For a custom value not in this chart, use the interactive Mile per Hour to Meter per Second converter.
| Mile per Hour (mph) | Meter per Second (m/s) |
|---|---|
| 1 mph | 0.44704 m/s |
| 5 mph | 2.2352 m/s |
| 10 mph | 4.4704 m/s |
| 15 mph | 6.7056 m/s |
| 20 mph | 8.9408 m/s |
| 25 mph | 11.176 m/s |
| 30 mph | 13.4112 m/s |
| 40 mph | 17.8816 m/s |
| 50 mph | 22.352 m/s |
| 55 mph | 24.5872 m/s |
| 60 mph | 26.8224 m/s |
| 65 mph | 29.0576 m/s |
| 70 mph | 31.2928 m/s |
| 75 mph | 33.528 m/s |
| 80 mph | 35.7632 m/s |
| 100 mph | 44.704 m/s |
| 120 mph | 53.6448 m/s |
| 150 mph | 67.056 m/s |
| 200 mph | 89.408 m/s |
| 300 mph | 134.112 m/s |
| 400 mph | 178.816 m/s |
| 500 mph | 223.52 m/s |
| 600 mph | 268.224 m/s |
| 760 mph | 339.75 m/s |
Conversion Formula
m/s = mph × 0.44704 mph = m/s × 2.23694 1 mph = 0.44704 m/s 1 m/s = 2.23694 mph Road speed reference (mph → m/s): 25 mph = 11.2 m/s (residential limit, US) 55 mph = 24.6 m/s (rural highway) 65 mph = 29.1 m/s (US Interstate) 70 mph = 31.3 m/s (UK motorway) 80 mph = 35.8 m/s (autobahn typical cruise) Physics & engineering: 100 mph = 44.7 m/s (baseball pitch is ~42 m/s) 760 mph = 340 m/s (approximately speed of sound) Quick estimate: divide mph by 2.237 ≈ m/s
Frequently Asked Questions
How many m/s is 60 mph?
60 mph × 0.44704 = 26.8 m/s. This is typical highway cruising speed — useful in physics problems to understand stopping distances: at 26.8 m/s, kinetic energy scales as v², making speed control critical.
How many m/s is 70 mph?
70 mph × 0.44704 = 31.3 m/s. The UK motorway speed limit of 70 mph is 31.3 m/s. A car traveling at 70 mph covers about 31 meters every second — roughly 8 car lengths per second.
How do I convert mph to m/s for physics calculations?
Multiply mph by 0.44704 to get m/s. Physics formulas (kinetic energy KE = ½mv², stopping distance s = v²/2a) require m/s for SI unit consistency. If you use mph directly in SI formulas, the results will be wrong.
What is a baseball pitch in m/s?
A 95 mph fastball = 95 × 0.44704 = 42.5 m/s. Major League Baseball average fastball speed is around 92–94 mph (41–42 m/s). A cricket delivery at 90 mph (140 km/h) = 40.2 m/s.
How fast is a car crash in m/s?
At 30 mph (13.4 m/s), a pedestrian struck has approximately 45% fatality risk. At 40 mph (17.9 m/s), it rises to ~85%. The physics: kinetic energy = ½mv², so doubling speed quadruples kinetic energy. This is why modern speed limits in pedestrian zones are set at 20–30 mph (8.9–13.4 m/s).
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