How to convert metres per second to miles per hour
One metre per second equals 2.2369 miles per hour, so multiply the number of metres per second by 2.2369:
mph = m/s × 2.2369
m/s = mph ÷ 2.2369 (1 mph = 0.44704 m/s)
Example: 1.4 m/s → 1.4 × 2.2369 = 3.1317 mph.
Going the other way, divide by 2.2369, or multiply by 0.44704.
Everyday values
| Metres per second | Miles per hour | For example |
|---|---|---|
| 1.4 m/s | 3.1317 mph | walking pace |
| 5 m/s | 11.1847 mph | a gentle breeze |
| 10 m/s | 22.3694 mph | a fresh breeze |
| 30 m/s | 67.1081 mph | hurricane-force wind begins at about 33 m/s |
When you need this conversion
One m/s is 2.237 mph. Wind speeds in US forecasts are in mph, while many international and scientific sources use m/s.
Metre per second to mile per hour conversion table
| m/s | mph | m/s | mph |
|---|---|---|---|
| 1 m/s | 2.2369 mph | 16 m/s | 35.791 mph |
| 2 m/s | 4.4739 mph | 17 m/s | 38.0279 mph |
| 3 m/s | 6.7108 mph | 18 m/s | 40.2649 mph |
| 4 m/s | 8.9478 mph | 19 m/s | 42.5018 mph |
| 5 m/s | 11.1847 mph | 20 m/s | 44.7387 mph |
| 6 m/s | 13.4216 mph | 21 m/s | 46.9757 mph |
| 7 m/s | 15.6586 mph | 22 m/s | 49.2126 mph |
| 8 m/s | 17.8955 mph | 23 m/s | 51.4495 mph |
| 9 m/s | 20.1324 mph | 24 m/s | 53.6865 mph |
| 10 m/s | 22.3694 mph | 25 m/s | 55.9234 mph |
| 11 m/s | 24.6063 mph | 26 m/s | 58.1603 mph |
| 12 m/s | 26.8432 mph | 27 m/s | 60.3973 mph |
| 13 m/s | 29.0802 mph | 28 m/s | 62.6342 mph |
| 14 m/s | 31.3171 mph | 29 m/s | 64.8712 mph |
| 15 m/s | 33.554 mph | 30 m/s | 67.1081 mph |
About the units
- Metre per second (m/s): the SI unit of speed.
- Mile per hour (mph): 1 mile per hour, exactly 1.609344 km/h.
Both are units of speed. The conversion factor comes from the exact definitions above, so the calculator is exact; results are only rounded for display (up to six significant digits).
Frequently asked questions
How many miles per hour are in one metre per second?
One metre per second is 2.2369 miles per hour. One mile per hour is 0.44704 metres per second.
How do I convert metres per second to miles per hour?
Multiply the value in metres per second by 2.2369. To go back, divide by 2.2369.
What is 1.4 m/s in miles per hour?
1.4 m/s = 3.1317 mph.
What is 5 m/s in miles per hour?
5 m/s = 11.1847 mph.
Sources
- NIST Special Publication 811 (2008), Guide for the Use of the International System of Units (SI), Appendix B: conversion factors.
- NIST Handbook 44 (2024), Appendix C: General tables of units of measurement.
Last reviewed 5 October 2026. Results are estimates; see our disclaimer.