MPH to FPS Converter
Type a value in miles per hour to see it in feet per second as you type, with the exact formula and a reference chart.
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- Kilometers per hour
- 96.561 km/h
How this was calculated
- 1 mile per hour = 1.466666667 feet per second
- 60 × 1.466666667 = 88 ft/s
| mph | ft/s |
|---|---|
| 1 mph | 1.46667 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 |
| 30 mph | 44 ft/s |
| 35 mph | 51.3333 ft/s |
| 40 mph | 58.6667 ft/s |
| 45 mph | 66 ft/s |
| 50 mph | 73.3333 ft/s |
| 55 mph | 80.6667 ft/s |
| 60 mph | 88 ft/s |
| 65 mph | 95.3333 ft/s |
| 70 mph | 102.667 ft/s |
| 75 mph | 110 ft/s |
| 80 mph | 117.333 ft/s |
| 90 mph | 132 ft/s |
| 100 mph | 146.667 ft/s |
| 120 mph | 176 ft/s |
| 150 mph | 220 ft/s |
| 200 mph | 293.333 ft/s |
| 500 mph | 733.333 ft/s |
| 767 mph | 1,124.93 ft/s |
| ft/s | mph |
|---|---|
| 1 ft/s | 0.681818 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 |
| 22 ft/s | 15 mph |
| 25 ft/s | 17.0455 mph |
| 30 ft/s | 20.4545 mph |
| 40 ft/s | 27.2727 mph |
| 44 ft/s | 30 mph |
| 50 ft/s | 34.0909 mph |
| 60 ft/s | 40.9091 mph |
How to convert miles per hour to feet per second
1 mile per hour = 1.466666667 feet per second. To convert miles per hour to feet per second, multiply by 1.466666667. One mile per hour is 1,609.344 m covered in one hour. One foot per second is exactly 0.3048 m/s.
Worked examples
- 30 miles per hour = 44 ft/s (30 × 1.4666667)
- 60 miles per hour = 88 ft/s (60 × 1.4666667)
- 100 miles per hour = 146.667 ft/s (100 × 1.4666667)
Where this conversion comes up
Miles per hour are used for speed limits and car speedometers in the US and UK; feet per second for ballistics, stopping-distance tables and fluid flow in the US. Multiply by 1.4667 (5,280 ÷ 3,600): 60 mph is 88 ft/s, so at highway speed a car covers almost 90 feet every second, about six car lengths. Stopping-distance tables are built on this.
Quick estimate
Multiply by 1.5 and subtract 2%.
Common mistakes
- Dividing instead of multiplying. A foot per second is smaller than a mile per hour, so the number of feet per second must come out larger: 30 miles per hour = 44 ft/s.
- Rounding too early. Keep the full factor until the last step; rounding 1.47 to 1 first puts large values noticeably off.
Going the other way? Use the fps to mph converter. Related speed converters: kph to mph, mph to kph, knots to mph, mph to knots, mph to m/s, m/s to mph.
Frequently asked questions
How do you convert miles per hour to feet per second?
Multiply the miles per hour by 1.466666667. For example, 60 miles per hour is 88 feet per second.
How many feet per second are in one mile per hour?
One mile per hour is 1.466666667 feet per second. One mile per hour is 1,609.344 m covered in one hour.
What is 100 miles per hour in feet per second?
100 miles per hour is 146.667 feet per second.
Is there a quick way to estimate miles per hour to feet per second?
Multiply by 1.5 and subtract 2%.