Feet per second to miles per hour
miles per hour = feet per second × 0.68181818
Reverse: miles per hour to feet per second
How to convert feet per second to miles per hour
One foot per second is 0.68181818 miles per hour, so multiply the number of feet per second by 0.68181818. For example, 20 feet per second is 20 × 0.68181818 = 13.636364 miles per hour. To go back, divide by the same number, or multiply by 1.466667.
Quick estimate
Multiplying by about 0.7 gets within 2.7% of the exact answer, which is enough to check that a result makes sense.
Where it comes up
Speed conversions come up when driving abroad, in running and cycling paces, weather and wind reports, and sailing and flying.
| feet per second | miles per hour |
|---|---|
| 1 fps | 0.68181818 mph |
| 2 fps | 1.363636 mph |
| 3 fps | 2.045455 mph |
| 4 fps | 2.727273 mph |
| 5 fps | 3.409091 mph |
| 6 fps | 4.090909 mph |
| 7 fps | 4.772727 mph |
| 8 fps | 5.454545 mph |
| 9 fps | 6.136364 mph |
| 10 fps | 6.818182 mph |
| 11 fps | 7.5 mph |
| 12 fps | 8.181818 mph |
| 13 fps | 8.863636 mph |
| 14 fps | 9.545455 mph |
| 15 fps | 10.227273 mph |
| 16 fps | 10.909091 mph |
| 17 fps | 11.590909 mph |
| 18 fps | 12.272727 mph |
| 19 fps | 12.954545 mph |
| 20 fps | 13.636364 mph |
| 25 fps | 17.045455 mph |
| 30 fps | 20.454545 mph |
| 40 fps | 27.272727 mph |
| 50 fps | 34.090909 mph |
| 60 fps | 40.909091 mph |
| 70 fps | 47.727273 mph |
| 75 fps | 51.136364 mph |
| 80 fps | 54.545455 mph |
| 90 fps | 61.363636 mph |
| 100 fps | 68.181818 mph |
| 120 fps | 81.818182 mph |
| 150 fps | 102.272727 mph |
| 200 fps | 136.363636 mph |
| 250 fps | 170.454545 mph |
| 300 fps | 204.545455 mph |
| 400 fps | 272.727273 mph |
| 500 fps | 340.909091 mph |
| 750 fps | 511.363636 mph |
| 1,000 fps | 681.818182 mph |
| 1,500 fps | 1,022.73 mph |
| 2,000 fps | 1,363.64 mph |
| 5,000 fps | 3,409.09 mph |
| 10,000 fps | 6,818.18 mph |
Questions
How many miles per hour are in a foot per second?
0.68181818 miles per hour.
How do I convert feet per second to miles per hour in a spreadsheet?
Put the value in A1 and type =A1*0.68181818, then fill the formula down the column.
Are the values in the table exact?
They are calculated from the exact definitions of the units and rounded only for display. Open any row for the full working.