How to convert feet per second to miles per hour
mph = ft/s × 0.6818181818Multiply the value in feet per second by 0.6818181818. To go the other way, multiply by 1.466666667 (or divide by 0.6818181818).
A foot per second is smaller than a mile per hour: it takes 1.466666667 feet per second to make one mile per hour.
Worked examples
- 1 foot per second1 ft/s × 0.6818181818 = 0.6818181818 mph
- 5 feet per second5 ft/s × 0.6818181818 = 3.409090909 mph
- 10 feet per second10 ft/s × 0.6818181818 = 6.818181818 mph
- 20 feet per second20 ft/s × 0.6818181818 = 13.63636364 mph
- 100 feet per second100 ft/s × 0.6818181818 = 68.18181818 mph
Feet per second to miles per hour conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Feet per second (ft/s) | Miles per hour (mph) |
|---|---|
| 0.1 ft/s | 0.068181818 mph |
| 0.25 ft/s | 0.17045455 mph |
| 0.5 ft/s | 0.34090909 mph |
| 1 ft/s | 0.68181818 mph |
| 2 ft/s | 1.3636364 mph |
| 3 ft/s | 2.0454545 mph |
| 4 ft/s | 2.7272727 mph |
| 5 ft/s | 3.4090909 mph |
| 6 ft/s | 4.0909091 mph |
| 7 ft/s | 4.7727273 mph |
| 8 ft/s | 5.4545455 mph |
| 9 ft/s | 6.1363636 mph |
| 10 ft/s | 6.8181818 mph |
| Feet per second (ft/s) | Miles per hour (mph) |
|---|---|
| 12 ft/s | 8.1818182 mph |
| 15 ft/s | 10.227273 mph |
| 20 ft/s | 13.636364 mph |
| 25 ft/s | 17.045455 mph |
| 30 ft/s | 20.454545 mph |
| 40 ft/s | 27.272727 mph |
| 50 ft/s | 34.090909 mph |
| 75 ft/s | 51.136364 mph |
| 100 ft/s | 68.181818 mph |
| 250 ft/s | 170.45455 mph |
| 500 ft/s | 340.90909 mph |
| 1,000 ft/s | 681.81818 mph |
About the units
Foot per second (ft/s)
Exactly 0.3048 m/s. Used for projectile and fluid velocities in US engineering.
Mile per hour (mph)
Exactly 0.44704 m/s. Used for road speeds in the US and UK; 60 mph is about 96.6 km/h.
Frequently asked questions
How many miles per hour are in one foot per second?
There are 0.6818181818 miles per hour in one foot per second, and this value is exact by definition.
How do I convert feet per second to miles per hour?
Multiply the number of feet per second by 0.6818181818. For example, 10 ft/s × 0.6818181818 = 6.818181818 mph.
How many feet per second are in one mile per hour?
One mile per hour equals 1.466666667 feet per second. That is the reverse factor, 1 ÷ 0.6818181818.
What is 10 feet per second in miles per hour?
10 ft/s = 6.818181818 mph.
Is this ft/s to mph converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.