What is foot per second?

Foot per second is a unit of speed in imperial and US customary systems. It is used in ballistics, sports science, and engineering calculations that rely on US customary units.

What is mach (approx at sea level)?

Mach is a dimensionless speed unit expressing the ratio of an object’s speed to the local speed of sound. At sea level, Mach 1 is approximately 343 m/s. It is used in aviation and aerodynamics to characterise high-speed flight regimes.

Worked examples

1 foot per second = 0.00089571 mach (approx at sea level)

1 mach (approx at sea level) = 340.29 metre per second

More Speed conversions

• Convert foot per second to metre per second
• Convert foot per second to kilometre per hour
• Convert foot per second to mile per hour
• Convert foot per second to knot
• Convert foot per second to metre per minute
• Convert foot per second to kilometre per second
• Convert foot per second to mach (approx at sea level)
• Convert foot per second to centimetre per second
• Convert foot per second to mile per minute

Assumption: Mach uses an approximate sea-level reference (about 340.29 m/s).