Meter/Second to Mile/Hour (m/s to mph)
Result
2.236936292 Mile/Hour
Formula
mph = m/s × 2.236936292
1 m/s = 2.236936292 mph, and 1 mph = 0.44704 m/s.
Speed units are a length divided by a time: 1 km/h = 1/3.6 m/s, 1 mph = 0.44704 m/s exactly, and 1 knot = 1 nautical mile per hour = 1,852/3,600 m/s.
Worked examples
- 1 m/s × 2.236936292 = 2.2369363 mph
- 10 m/s × 2.236936292 = 22.369363 mph
- 100 m/s × 2.236936292 = 223.69363 mph
Common mistakes
- A knot is a nautical mile per hour, so 1 kn = 1.852 km/h and 1.15078 mph — not 1 mph.
- Weather services quote wind in km/h, m/s, mph or knots depending on country; check the unit before comparing forecasts.
Meter/Second to Mile/Hour table
| Meter/Second (m/s) | Mile/Hour (mph) |
|---|---|
| 1 | 2.2369363 |
| 2 | 4.4738726 |
| 5 | 11.184681 |
| 10 | 22.369363 |
| 20 | 44.738726 |
| 50 | 111.84681 |
| 100 | 223.69363 |
| 1,000 | 2,236.9363 |
The units
- Meter/Second (m/s)
- A unit of speed.
- Mile/Hour (mph)
- Miles per hour: exactly 0.44704 m/s.
Sources for these factors
- Guide for the Use of the International System of Units (SP 811), Appendix B: conversion factors — NIST
- Handbook 44 (2024), Appendix C: General Tables of Units of Measurement — NIST
Last reviewed against these sources. An automated check recomputes every factor from its definition on each build. How we check accuracy