Miles per hour to Feet per second formula
feet per second = miles per hour × 1.46667
Multiply the number of miles per hour by 1.46667 to get feet per second. To go the other way, multiply by 0.681818 instead, or use the fps to mph converter.
Miles per hour to Feet per second conversion table
Common mph to fps values, rounded for reading. The converter above keeps full precision.
| Miles per hour | Feet per second |
|---|---|
| 1 mph | 1.46667 ft/s |
| 2 mph | 2.93333 ft/s |
| 3 mph | 4.4 ft/s |
| 4 mph | 5.86667 ft/s |
| 5 mph | 7.33333 ft/s |
| 10 mph | 14.6667 ft/s |
| 15 mph | 22 ft/s |
| 20 mph | 29.3333 ft/s |
| 25 mph | 36.6667 ft/s |
| 50 mph | 73.3333 ft/s |
| 75 mph | 110 ft/s |
| 100 mph | 146.667 ft/s |
| 250 mph | 366.667 ft/s |
| 500 mph | 733.333 ft/s |
| 1,000 mph | 1,466.67 ft/s |
Worked example
To convert 10 mph to feet per second, multiply by 1.46667: the result is 14.6667 ft/s. One knot is exactly one nautical mile per hour. A nautical mile is exactly 1,852 meters, so 1 knot equals 1.150779448 mph and 1.852 km/h.
Frequently asked questions
How many feet per second are in a mile per hour?
One mile per hour equals 1.46667 feet per second (1 mph = 1.46667 ft/s).
What is 10 miles per hour in feet per second?
10 mph converts to 14.6667 ft/s. Enter any other value in the converter above to see it recalculated instantly.
How do I convert feet per second back to miles per hour?
Reverse the calculation: one foot per second equals 0.681818 miles per hour. You can also swap the units in the converter or open the fps to mph page.
Related speed conversions
Need a different pair? Open the full speed converter to choose any two units.