How to convert miles per hour to feet per second
To convert a measurement in miles per hour to feet per second, multiply the value by 1.466667. The conversion factor comes from the relationship between both units and the meter per second.
For example, to convert 5 mph to feet per second: 5 × 1.466667 = 7.333333 ft/s.
What is a mile per hour?
The mile per hour is an imperial unit of speed equal to one mile traveled in one hour, or exactly 0.44704 meters per second. Mph remains the standard for road speed in the United States and United Kingdom, a legacy of the imperial mile that predates widespread metric adoption elsewhere.
Common uses of miles per hour include: Road speed limits in the US and UK; Vehicle speedometers in imperial countries; Wind and storm speed reporting (US); Baseball pitch and sports speeds.
What is a foot per second?
The foot per second is an imperial unit of speed equal to one foot traveled in one second, or exactly 0.3048 meters per second. Ft/s is common in US engineering and ballistics, where distances are measured in feet. Muzzle velocities, fluid flow, and free-fall speeds are frequently expressed this way.
Common uses of feet per second include: Ballistics and muzzle velocity; US engineering and fluid flow; Free-fall and projectile physics; Conveyor and belt speeds.
Miles per hour to feet per second worked examples
Here are some common values converted:
1 mph = 1.466667 ft/s 5 mph = 7.333333 ft/s 10 mph = 14.666667 ft/s 50 mph = 73.333333 ft/s 100 mph = 146.666667 ft/s
Frequently asked questions
How many feet per second are in one mile per hour?
One mile per hour (mph) equals 1.466667 feet per second (ft/s). Multiply any value in miles per hour by 1.466667 to convert to feet per second.
How do I convert miles per hour to feet per second?
Multiply the value in miles per hour by 1.466667. For example, 5 mph × 1.466667 = 7.333333 ft/s.
How do I convert feet per second to miles per hour?
Multiply the value in feet per second by 0.681818181818, or divide by 1.466667. Use the swap button on the converter above to reverse the direction.
Is the mile per hour to foot per second conversion exact?
Conversions between m/s, km/h, mph, knots and ft/s are exact by definition. Mach uses the speed of sound at sea level and 15°C (340.29 m/s), which varies with temperature and altitude.
What is the formula for miles per hour to feet per second?
The formula is: ft/s = mph × 1.466667. This comes from the definition of both units relative to the meter per second.