How to convert feet per second to miles per hour
To convert a measurement in feet per second to miles per hour, multiply the value by 0.681818181818. The conversion factor comes from the relationship between both units and the meter per second.
For example, to convert 5 ft/s to miles per hour: 5 × 0.681818181818 = 3.409091 mph.
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.
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.
Feet per second to miles per hour worked examples
Here are some common values converted:
1 ft/s = 0.681818181818 mph 5 ft/s = 3.409091 mph 10 ft/s = 6.818182 mph 50 ft/s = 34.090909 mph 100 ft/s = 68.181818 mph
Frequently asked questions
How many miles per hour are in one foot per second?
One foot per second (ft/s) equals 0.681818181818 miles per hour (mph). Multiply any value in feet per second by 0.681818181818 to convert to miles per hour.
How do I convert feet per second to miles per hour?
Multiply the value in feet per second by 0.681818181818. For example, 5 ft/s × 0.681818181818 = 3.409091 mph.
How do I convert miles per hour to feet per second?
Multiply the value in miles per hour by 1.466667, or divide by 0.681818181818. Use the swap button on the converter above to reverse the direction.
Is the foot per second to mile per hour 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 feet per second to miles per hour?
The formula is: mph = ft/s × 0.681818181818. This comes from the definition of both units relative to the meter per second.