Meters per Second to MPH
Convert any speed from SI (m/s) to US/UK road-speed (mph) using the exact factor 2.23694. Ideal for physics problems, running/cycling metrics, and engineering reports.
Convert speed
Presets (m/s):
Result
Miles per hour: –
Factor used: 1 m/s = 2.23694 mph
Reverse (mph → m/s)
m/s to mph formula
The relationship comes from the definitions of meter, mile, second, and hour:
1 mile = 1609.344 meters1 hour = 3600 seconds1 m/s = (3600 / 1609.344) mph ≈ 2.2369362921 mph
So the working formula is:
mph = m/s × 2.23694
To go the other way:
m/s = mph × 0.44704
Quick reference table
| m/s | mph |
|---|---|
| 1 m/s | 2.24 mph |
| 3 m/s | 6.71 mph |
| 5 m/s | 11.18 mph |
| 10 m/s | 22.37 mph |
| 20 m/s | 44.74 mph |
| 30 m/s | 67.11 mph |
FAQ
Why am I seeing 2.23694 and not 2.24?
2.24 is a rounded classroom value. 2.23694 is more precise and matches the official mile definition 1609.344 m.
Is this good for running/cycling?
Yes. Many fitness trackers give m/s or m/min — you can plug m/s here and get a speed you can compare to road limits.
Formula (LaTeX) + variables + units
This section shows the formulas used by the calculator engine, plus variable definitions and units.
Formula (extracted LaTeX)
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Formula (extracted text)
1 mile = 1609.344 meters 1 hour = 3600 seconds 1 m/s = (3600 / 1609.344) mph ≈ 2.2369362921 mph
Variables and units
- No variables provided in audit spec.
Sources (authoritative):
- NIST — Weights and measures — nist.gov · Accessed 2026-01-19
https://www.nist.gov/pml/weights-and-measures - NIST — SI units — nist.gov · Accessed 2026-01-19
https://www.nist.gov/pml/owm/metric-si/si-units
Changelog
Version: 0.1.0-draft
Last code update: 2026-01-19
Last code update: 2026-01-19
0.1.0-draft · 2026-01-19
- Initial audit spec draft generated from HTML extraction (review required).
- Verify formulas match the calculator engine and convert any text-only formulas to LaTeX.
- Confirm sources are authoritative and relevant to the calculator methodology.