Convert Miles per Hour to Feet per Second
Convert Miles per Hour to Feet per Second instantly. 1 Mile per Hour (mph) equals 1.4667 Feet per Second (ft/s).
Miles per Hour to Feet per Second conversion table
| Miles per Hour (mph) | Feet per Second (ft/s) |
|---|---|
| 1 mph | 1.4667 ft/s |
| 2 mph | 2.9333 ft/s |
| 3 mph | 4.4 ft/s |
| 5 mph | 7.3333 ft/s |
| 10 mph | 14.6667 ft/s |
| 20 mph | 29.3333 ft/s |
| 50 mph | 73.3333 ft/s |
| 100 mph | 146.6667 ft/s |
| 500 mph | 733.3333 ft/s |
| 1,000 mph | 1,466.67 ft/s |
1 Mile per Hour = 1.4667 Feet per Second · multiply Miles per Hour by 1.4667
About converting Miles per Hour to Feet per Second
Miles per Hour (mph) and Feet per Second (ft/s) are both units of speed, so converting between them is a single multiplication: multiply your Miles per Hour figure by 1.4667. Ten Miles per Hour comes to 14.6667 Feet per Second, and a hundred works out at 146.6667 Feet per Second.
Rule of thumb: going from Miles per Hour to Feet per Second multiplies, so the figure always grows — one Mile per Hour is already 1.4667 Feet per Second. If your answer came out smaller, you have the conversion the wrong way round.
What is a Mile per Hour?
Miles per hour is the road-speed unit that refused to die. It is posted on the signs and printed on the speedometers of the United States and the United Kingdom, two countries that otherwise use metric for most scientific and industrial work — a split that leaves British drivers buying fuel in litres while measuring their speed in miles. It has a second life in the media of both countries, where wind gusts, pitch speeds and tennis serves are quoted in mph out of pure habit rather than for any technical reason.
What is a Foot per Second?
Feet per second is a working unit rather than a public one. It appears wherever American engineering needs a speed that pairs with dimensions already given in feet — conveyor and belt speeds, water flowing in a channel, air velocity in a duct — and above all in ballistics, where muzzle velocity has always been quoted in ft/s. It is also the unit US physics problems fall back on when they are posed in imperial, so it feels oddly familiar to anyone who learned mechanics from an American textbook. On a road sign it appears essentially never.
To put both in perspective: a US interstate limit is typically 65 to 75 miles per hour, while a rifle bullet leaves the muzzle at roughly 3,000 feet per second.
The converter above updates as you type, and the table lists common values for quick reference. Need the opposite direction? Use the Feet per Second to Miles per Hour converter, or browse all Speed converters.
Frequently asked questions
How many Feet per Second are in one Mile per Hour?
There are 1.4667 Feet per Second in one Mile per Hour.
How do I convert Miles per Hour to Feet per Second?
Multiply the number of Miles per Hour by 1.4667. For example, 10 Miles per Hour = 14.6667 Feet per Second.
What is 100 Miles per Hour in Feet per Second?
100 Miles per Hour is equal to 146.6667 Feet per Second.
How do I convert Feet per Second to Miles per Hour?
Multiply the Feet per Second value by 0.6818 (or divide by 1.4667).
Is this Miles per Hour to Feet per Second conversion exact?
The definition is exact — Miles per Hour and Feet per Second are both fixed against the same base by international agreement — but the decimal shown here is rounded for readability, because the true ratio does not terminate. For engineering or scientific work, carry more decimal places than this page displays.
What is a Mile per Hour?
Miles per hour is the road-speed unit that refused to die. It is posted on the signs and printed on the speedometers of the United States and the United Kingdom, two countries that otherwise use metric for most scientific and industrial work — a split that leaves British drivers buying fuel in litres while measuring their speed in miles. It has a second life in the media of both countries, where wind gusts, pitch speeds and tennis serves are quoted in mph out of pure habit rather than for any technical reason.
What is a Foot per Second?
Feet per second is a working unit rather than a public one. It appears wherever American engineering needs a speed that pairs with dimensions already given in feet — conveyor and belt speeds, water flowing in a channel, air velocity in a duct — and above all in ballistics, where muzzle velocity has always been quoted in ft/s. It is also the unit US physics problems fall back on when they are posed in imperial, so it feels oddly familiar to anyone who learned mechanics from an American textbook. On a road sign it appears essentially never.