100 feet per second to Mach

100 ft/s = 0.08957066 M. Change the amount below, or read the formula and the reference table further down.

100 feet per second equals

0.08957066Mach

1 ft/s = 0.00089571 M

The formula

Feet per second and Mach both measure speed from the same zero, so a single multiplier does the job.

M = ft/s × 0.0008957066

Going the other way? Convert Mach to feet per second.

Feet per second to Mach table

Values either side of 100 ft/s.

Feet per second (ft/s)Mach (M)
00
100.008957
200.017914
300.026871
400.035828
500.044785
600.053742
700.062699
800.071657
900.080614
1000.089571
1100.098528
1200.107485
1300.116442
1400.125399
1500.134356
1600.143313
1700.15227
1800.161227
1900.170184
2000.179141

Questions people ask

How many Mach are in a foot per second?
One foot per second equals 0.0008957066 Mach.
How do I convert feet per second to Mach by hand?
Multiply the number of feet per second by 0.0008957066. For a rough check, 0.001 is close enough for most everyday use.
What is 100 feet per second in Mach?
100 feet per second is 0.08957066 Mach.

Calcuit generates this page from a unit table, so the factors here match every other page on the site.

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