Convert mph to m/s
1 mph = 0.44704 m/s · 1 m/s = 2.23694 mph · Exact by definition
1 mph = 0.44704 m/s
The same value in other units
- kilometre per hour
- 1.60934 km/h
- knot
- 0.868976 kn
- minutes per kilometre
- 37.2823 min/km
Settings
Digits kept in the answer. Automatic keeps six, which hides floating-point noise without losing anything real.
Convert a whole list
Paste one conversion per line, written the way you would say it: "5 km to mi". Handy for a column copied out of a spreadsheet.
Speed and pace
mph to m/s: conversion table
| mile per hour | metre per second |
|---|---|
| 1 mph | 0.44704 m/s |
| 2 mph | 0.89408 m/s |
| 3 mph | 1.34112 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 |
| 50 mph | 22.352 m/s |
| 100 mph | 44.704 m/s |
| 250 mph | 111.76 m/s |
| 500 mph | 223.52 m/s |
| 1000 mph | 447.04 m/s |
| metre per second | mile per hour |
|---|---|
| 1 m/s | 2.23694 mph |
| 2 m/s | 4.47387 mph |
| 3 m/s | 6.71081 mph |
| 5 m/s | 11.1847 mph |
| 10 m/s | 22.3694 mph |
| 20 m/s | 44.7387 mph |
| 25 m/s | 55.9234 mph |
| 50 m/s | 111.847 mph |
| 100 m/s | 223.694 mph |
| 250 m/s | 559.234 mph |
| 500 m/s | 1118.47 mph |
| 1000 m/s | 2236.94 mph |
How the conversion works
m/s = mph × 0.44704
Both units are defined exactly, so the precision of the mph to m/s result depends only on the number of decimal places you choose.
METHOD AND SOURCES
Where the conversion factors come from
Results are calculated from the unit definitions stored in the converter, not copied from a lookup table. For exact units, every value in the table follows from the same factor shown in the formula above.
- BIPM — SI Brochure
The official definitions of the International System of Units (SI).
- NIST SP 811 — Conversion factors
Conversion-factor tables for SI and non-SI units.
Keep going