Feet Per Second to Mach Converter

About these units

ft/s
Feet/second (ft/s) is a speed unit used in this converter.
mach
Mach number, a ratio comparing an object's speed with the local speed of sound. This converter uses Mach 1 = 343 m/s = 1,234.8 km/h as a reference, but the real speed of sound changes with air temperature and altitude.

Speed guide

How to use the Feet Per Second to Mach Converter

Convert feet per second (ft/s) to mach (mach) with the exact speed formula, worked examples, and a common-values table. Use the instant result for the feet per second to mach conversion, then check the common-value table, reverse link, and unit notes before copying the answer.

  1. 1

    Enter Feet Per Second

    Type the feet per second value you want to convert. Decimal values work when you need a partial unit.

  2. 2

    Read Mach

    Use the main result for the exact mach value, then scan the common-value table for nearby reference points.

  3. 3

    Confirm Feet Per Second to Mach

    Confirm whether you are converting speed, distance, or time; similar-looking route and speed units can answer different questions.