MPH to M/S Converter
Convert miles per hour to meters per second instantly. One mile per hour equals exactly 0.44704 meters per second. Type in either box to convert both ways, then use the chart, worked examples and everyday sizes below.
How to convert miles per hour to meters per second
Worked example: convert 12 miles per hour to meters per second. Using meters per second ← miles per hour × 0.44704, we get 12 × 0.44704 = 5.36448 m/s. To check the result, convert back: 5.36448 m/s ÷ 0.44704 = 12 mph.
Miles per hour to meters per second chart
| Miles per hour (mph) | Meters per second (m/s) |
|---|---|
| 1 mph | 0.44704 m/s |
| 2 mph | 0.89408 m/s |
| 3 mph | 1.34112 m/s |
| 4 mph | 1.78816 m/s |
| 5 mph | 2.2352 m/s |
| 6 mph | 2.68224 m/s |
| 8 mph | 3.57632 m/s |
| 10 mph | 4.4704 m/s |
| 12 mph | 5.36448 m/s |
| 15 mph | 6.7056 m/s |
| 20 mph | 8.9408 m/s |
| 25 mph | 11.176 m/s |
| 30 mph | 13.4112 m/s |
| 40 mph | 17.8816 m/s |
| 50 mph | 22.352 m/s |
| 75 mph | 33.528 m/s |
| 100 mph | 44.704 m/s |
| 150 mph | 67.056 m/s |
| 200 mph | 89.408 m/s |
| 250 mph | 111.76 m/s |
| 500 mph | 223.52 m/s |
| 1,000 mph | 447.04 m/s |
Meters per second to miles per hour (reverse)
| Meters per second (m/s) | Miles per hour (mph) |
|---|---|
| 1 m/s | 2.236936 mph |
| 2 m/s | 4.473873 mph |
| 5 m/s | 11.18468 mph |
| 10 m/s | 22.36936 mph |
| 20 m/s | 44.73873 mph |
| 50 m/s | 111.8468 mph |
| 100 m/s | 223.6936 mph |
| 250 m/s | 559.2341 mph |
| 500 m/s | 1,118.468 mph |
| 1,000 m/s | 2,236.936 mph |
About the mile per hour and the meter per second
Miles per hour is the speed unit on road signs and speedometers in the United States and United Kingdom.
Meters per second is the SI unit of speed, used in physics, engineering, wind-speed forecasts in many countries and athletics. Sound in air at 20 °C travels at about 343 m/s.
One meter per second equals 2.236936 miles per hour, which makes the meter per second the faster unit of the two.
Everyday sizes in miles per hour and meters per second
| Everyday example (approximate) | In miles per hour | In meters per second |
|---|---|---|
| A jogger | 6.7108 mph | 3 m/s |
| A city cyclist | 12.303 mph | 5.5 m/s |
| Usain Bolt's peak sprint speed | 27.738 mph | 12.4 m/s |
| A car on a city road | 31.071 mph | 13.89 m/s |
| A car on a highway | 62.142 mph | 27.78 m/s |
| A cheetah's top speed | 64.871 mph | 29 m/s |
Miles per hour to meters per second FAQ
How many meters per second are in one mile per hour?
One mile per hour equals exactly 0.44704 meters per second. In the other direction, one meter per second equals 2.2369363 miles per hour.
How do I convert miles per hour to meters per second without a calculator?
convert 12 miles per hour to meters per second. Using meters per second ← miles per hour × 0.44704, we get 12 × 0.44704 = 5.36448 m/s. To check the result, convert back: 5.36448 m/s ÷ 0.44704 = 12 mph. For a quick estimate, round the factor to 0.45. Then 12 mph is about 5.4 m/s, compared with the exact 5.36448 m/s (an error of 0.66%). That is close enough for planning, but use the calculator above when the number matters.
What is a cheetah's top speed in meters per second?
A cheetah's top speed is about 64.871 miles per hour, which is 29 meters per second. Treat that as an approximate everyday figure rather than an official measurement.
Are the miles per hour and meters per second the same in every country?
One mile per hour is exactly 0.44704 m/s. Meters per second is the SI unit of speed.