Feet per second to Miles per hour formula
miles per hour = feet per second × 0.681818
Multiply the number of feet per second by 0.681818 to get miles per hour. To go the other way, multiply by 1.46667 instead, or use the mph to fps converter.
Feet per second to Miles per hour conversion table
Common fps to mph values, rounded for reading. The converter above keeps full precision.
| Feet per second | Miles per hour |
|---|---|
| 1 ft/s | 0.681818 mph |
| 2 ft/s | 1.36364 mph |
| 3 ft/s | 2.04545 mph |
| 4 ft/s | 2.72727 mph |
| 5 ft/s | 3.40909 mph |
| 10 ft/s | 6.81818 mph |
| 15 ft/s | 10.2273 mph |
| 20 ft/s | 13.6364 mph |
| 25 ft/s | 17.0455 mph |
| 50 ft/s | 34.0909 mph |
| 75 ft/s | 51.1364 mph |
| 100 ft/s | 68.1818 mph |
| 250 ft/s | 170.455 mph |
| 500 ft/s | 340.909 mph |
| 1,000 ft/s | 681.818 mph |
Worked example
To convert 10 ft/s to miles per hour, multiply by 0.681818: the result is 6.81818 mph. 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 miles per hour are in a foot per second?
One foot per second equals 0.681818 miles per hour (1 ft/s = 0.681818 mph).
What is 10 feet per second in miles per hour?
10 ft/s converts to 6.81818 mph. Enter any other value in the converter above to see it recalculated instantly.
How do I convert miles per hour back to feet per second?
Reverse the calculation: one mile per hour equals 1.46667 feet per second. You can also swap the units in the converter or open the mph to fps page.
Related speed conversions
Need a different pair? Open the full speed converter to choose any two units.