Meters Per Second to Miles Per Hour
Convert meters per second to miles per hour instantly — one meter per second is 2.23694 miles per hour.
| Meters Per Second | Miles Per Hour |
|---|---|
| 1 m/s | 2.236936 mph |
| 2 m/s | 4.473873 mph |
| 3 m/s | 6.710809 mph |
| 5 m/s | 11.184681 mph |
| 10 m/s | 22.369363 mph |
| 25 m/s | 55.923407 mph |
| 50 m/s | 111.846815 mph |
| 100 m/s | 223.693629 mph |
How to use
- Enter a value in the Meters Per Second field.
- The Miles Per Hour figure appears immediately — no button to press.
- Typing in the Miles Per Hour field converts back to Meters Per Second the same way.
- Use the reference table for the values that come up most often.
Meters Per Second to Miles Per Hour formula
To convert meters per second to miles per hour, multiply by 2.23693629.
mph = m/s × 2.23693629
Why this factor: the meter per second and the mile per hour are both defined against the meter per second, so dividing one definition by the other gives 2.23693629 directly. Both definitions are set out in full below.
To go the other way, divide by 2.23693629 — or use the Miles Per Hour to Meters Per Second converter, which is the same calculation reversed.
Worked example
Start with 100 m/s. Multiply by 2.23693629 to get 223.693629 mph.
100 m/s × 2.23693629 = 223.693629 mph
The converter above does this for any value you type, in either direction.
What is a meter per second?
Meters per second is the SI unit of speed, and the one physics equations expect.
Definition: Derived directly from the meter and the second.
Where it is used: Physics and engineering calculations, wind speed in meteorology, and sound and projectile velocities.
What is a mile per hour?
Miles per hour is the road speed unit of the United States and the United Kingdom.
Definition: Exactly 0.44704 meters per second, following from the exact 1,609.344 m mile.
Where it is used: US and UK speed limits and speedometers, plus baseball pitch and tennis serve speeds.
Meters Per Second vs Miles Per Hour
The meter per second is an SI unit while the mile per hour is an imperial unit. That is why the factor between them is not a round number: the two systems were defined independently and only later tied together by exact agreement.
Frequently asked questions
How many miles per hour are in a meter per second?
One meter per second equals 2.23693629 miles per hour.
What is the formula to convert meters per second to miles per hour?
Multiply the number of meters per second by 2.23693629. To reverse it, divide by 2.23693629 instead.
How do I convert miles per hour back to meters per second?
Divide by 2.23693629, which is the same as multiplying by 0.44704.
How many miles per hour are in 10 meters per second?
10 m/s works out to 22.369363 mph.
How is the meter per second defined?
Derived directly from the meter and the second.