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Foot per Sec to Mile per Hour Converter

Convert Foot per Sec (ft/s) to Mile per Hour (mph) instantly. Enter any value — result updates live.

Speed Converter
Result
0.681818182mph
click to copy
Formula: 1 ft/s = 0.681818182 mph

About converting Foot per Sec to Mile per Hour

Converting Foot per Sec to Mile per Hour is a common speed conversion. One foot per sec (ft/s) equals 0.681818182 mile per hour (mph). Feet per second are used in ballistics, engineering, and some US speed calculations.

This conversion is commonly needed for running and fitness tracking, aviation and flight planning, sailing and marine navigation. Miles per hour are used for speed limits and weather in the US and UK.

To put foot per sec in perspective: the speed of sound (about 1,125 ft/s). In mile per hour, common references include a bicycle ride (about 15 mph).

Did you know?

Feet per second is commonly used in ballistics to describe projectile muzzle velocity, giving more intuitively sized numbers than meters per second for that range of speeds.

Real-world examples
Foot per Sec (ft/s)
  • a fast elevator (about 20 ft/s)
  • a pitched baseball (about 130 ft/s)
  • the speed of sound (about 1,125 ft/s)
Mile per Hour (mph)
  • a bicycle ride (about 15 mph)
  • a US highway speed limit (65–75 mph)
  • a cheetah's top speed (about 70 mph)
Did you know?

Even though the UK uses miles for road speed limits, it uses kilometers for most other measurements — a split that dates back to an incomplete 1965 metrication effort.

Common uses for speed conversion

People frequently convert between foot per sec and mile per hour for:

  • driving and speed limit compliance
  • running and fitness tracking
  • aviation and flight planning
  • sailing and marine navigation
  • physics and engineering calculations
Popular Foot per Sec to Mile per Hour conversions
Foot per Sec (ft/s)Mile per Hour (mph)
1 ft/s0.681818182 mph
2 ft/s1.36364 mph
5 ft/s3.40909 mph
10 ft/s6.81818 mph
15 ft/s10.2273 mph
20 ft/s13.6364 mph
25 ft/s17.0455 mph
30 ft/s20.4545 mph
50 ft/s34.0909 mph
100 ft/s68.1818 mph
200 ft/s136.4 mph
500 ft/s340.9 mph
1000 ft/s681.8 mph
More Foot per Sec conversions
Foot per Sec to Meter per Secft/s → m/sFoot per Sec to Km per Hourft/s → km/hFoot per Sec to Knotft/s → knFoot per Sec to Machft/s → MFoot per Sec to Speed of Lightft/s → c
Frequently asked questions
How do you convert Foot per Sec to Mile per Hour?
To convert Foot per Sec to Mile per Hour, use the formula: 1 ft/s = 0.681818182 mph. For example, 1 ft/s = 0.681818182 mph.
What is 1 Foot per Sec in Mile per Hour?
1 ft/s is equal to 0.681818182 mph.
How many foot per sec are in 1 mile per hour?
1 mph is equal to 1.46667 ft/s. To convert Mile per Hour back to Foot per Sec, multiply the mile per hour value by 1.46667.
When would I need to convert foot per sec to mile per hour?
This conversion is commonly needed for physics and engineering calculations, driving and speed limit compliance, running and fitness tracking. Feet per second are used in ballistics, engineering, and some US speed calculations. Miles per hour are used for speed limits and weather in the US and UK.
What does 1 foot per sec look like in real life?
For reference, a typical foot per sec measurement is a pitched baseball (about 130 ft/s). So 1 ft/s (0.681818182 mph) gives you a practical sense of scale.