Convert Miles per Hour to Meters per Second (mph to m/s)
1 mile per hour (mph) = 0.44704 meters per second (m/s). 1 m/s = 2.236936292 mph. Example: 15 mph = 15 × 0.44704 = 6.7056 m/s.
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1 mph = 0.44704 m/s
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk mile per hour to meter per second converter to paste a column from Excel.
How to Convert Mile per Hour to Meter per Second (Speed)
- 1 mph = 0.44704 m/s
- 1 m/s = 2.236936292 mph
- Example: convert 15 mph to m/s: 15 mph = 15 × 0.44704 m/s = 6.7056 m/s
Formula
m/s = mph × 0.44704
or m/s = mph ÷ 2.236936292054
Derivation from SI units:
- 1 mph = 1609.344 m ÷ 3600 s = 0.44704 m/s exactly.
- The SI unit of speed: one metre travelled per second.
Both units are defined exactly, so the factor is exact. Mile per Hour definition: mile per hour; Meter per Second (Speed) definition: meter per second.
Worked examples
- A reading of 30 mph converts to 13.4112 m/s.
30 mph × 0.44704 = 13.4112 m/s - A value of 60 mph is 26.8224 m/s.
60 mph × 0.44704 = 26.8224 m/s
Mile per Hour to Meter per Second (Speed) conversion table
| Miles per Hour (mph) | Meters per Second (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 |
| 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 |
Where it's used
Miles per Hour are used for US and UK speed limits, while meters per second appear in physics problems and science classes. Both measure speed (distance per time), so the conversion is a fixed factor.
Mile per Hour to other speed units
| Conversion | 1 mph equals |
|---|---|
| mile per hour to meter per second | 0.44704 m/s |
| mile per hour to kilometer per hour | 1.609344 km/h |
| mile per hour to foot per second | 1.466666667 ft/s |
| mile per hour to knot | 0.8689762419 kn |
Frequently asked questions
How many meters per second are in 1 mile per hour?
1 mph = 0.44704 m/s.
How do I convert miles per hour to meters per second?
Multiply the value in mph by 0.44704, or divide it by 2.236936292. For example, 15 mph × 0.44704 = 6.7056 m/s.
Is the mph to m/s conversion exact?
Yes. Both units are defined exactly, and 1 mph is exactly 0.44704 m/s.
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "mile per hour".
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4 (radian) and Table 8 (non-SI units accepted for use with the SI).
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Miles per Hour to Meters per Second (mph to m/s). Retrieved October 25, 2026, from https://scientificconverters.com/speed/miles-per-hour-to-meters-per-second/
IEEE
Scientific Converters, "Convert Miles per Hour to Meters per Second (mph to m/s)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/speed/miles-per-hour-to-meters-per-second/