Convert feet per second to Mach

1 ft/s=0.0008957Ma

Use the converter below to change any feet per second value into Mach instantly — with formula, conversion table, and real-world examples.

You have

Equals

0.00089571

Conversion formula

Forward

Mach = feet per second × 0.0008957

Reverse

feet per second = Mach × 1,116.44

Example: 10 ft/s × 0.0008957 = 0.008957 Ma.

About both units

From

Foot per Second

ft/s

Feet per second (ft/s) is used in some US engineering, ballistics (bullet velocity) and older US physics textbooks. Typical handgun muzzle velocity: 1000–1400 ft/s. Rifle muzzle velocity: 2500–3500 ft/s.

Real-world: 9mm bullet muzzle velocity: ~1150 ft/s. .308 rifle: ~2700 ft/s. Free fall terminal velocity: ~195 ft/s.

Read full foot per second reference →

Mach

Mach is the ratio of an object's speed to the local speed of sound. Mach 1 at sea level in standard conditions = 1225 km/h (340.29 m/s). Supersonic starts at Mach 1; hypersonic at Mach 5. The Concorde cruised at Mach 2.04; the X-15 reached Mach 6.7.

Real-world: Concorde: Mach 2.04. F-16 fighter: Mach 2. SR-71 Blackbird: Mach 3.3. Space re-entry: Mach 25+.

Read full mach reference →

Foot per Second to Mach conversion table

Common feet per second to Mach values for quick reference.

Foot per Second (ft/s)	Mach (Ma)
1 ft/s	0.0008957 Ma
5 ft/s	0.004479 Ma
10 ft/s	0.008957 Ma
25 ft/s	0.02239 Ma
50 ft/s	0.04479 Ma
100 ft/s	0.08957 Ma
150 ft/s	0.1344 Ma
200 ft/s	0.1791 Ma
300 ft/s	0.2687 Ma
500 ft/s	0.4479 Ma

Tips & common mistakes

Quick tips

1 ft/s = 0.3048 m/s = 1.097 km/h = 0.682 mph.
Multiplying ft/s by 0.682 gives mph.
US engineering often uses ft/s; metric countries use m/s.

Avoid these

Confusing ft/s with fps (frames per second in video/gaming).
Mixing ft/s with mph without conversion.
Using ft/s instead of m/s in international scientific contexts.

Frequently asked questions

How many Mach in a foot per second?

One foot per second equals 0.0008957 Mach.

How do I convert feet per second to Mach?

Multiply the foot per second value by 0.0008957 to get the equivalent in Mach.

What is 100 feet per second in Mach?

100 feet per second equals 0.08957 Mach.

Is a foot per second bigger than a mach?

No. 1 foot per second equals 0.0008957 Mach, so one foot per second is smaller.

How to convert feet per second to Mach without a calculator?

Multiply by 0 for a quick estimate; use a calculator for precise results.

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