Mach number to velocity calculator

Convert Mach number to velocity using the speed of sound in a given medium

Input Parameters

Calculation Results

Calculation Formula

Velocity (v) = Mach Number × Speed of Sound

Where:
- Velocity (v) is in meters per second (m/s)
- Mach Number is dimensionless
- Speed of Sound is in meters per second (m/s)

Results

Velocity:

0 m/s

Kilometers per hour:

0 km/h

Miles per hour:

0 mph

Knots:

0 knots

Mach number to velocity calculator Calculator Usage Guide

Learn how to use the Mach number to velocity calculator and its working principles

What is Mach Number?

Mach number is a dimensionless quantity representing the ratio of the speed of an object to the speed of sound in the medium through which it is traveling. For example, a Mach number of 1 means the object is traveling at the speed of sound.

How to use this calculator

  1. Enter the Mach number (dimensionless value, e.g., 1.5 for 1.5 times the speed of sound)
  2. Enter the speed of sound in the medium (in meters per second, m/s). The default value is 343 m/s, which is the speed of sound at sea level in air at 20°C
  3. Click the "Calculate" button to compute the velocity in different units
  4. Use the "Reset" button to clear all inputs and start over

Example Calculation

If an aircraft is traveling at Mach 2 in air where the speed of sound is 343 m/s:

Velocity = 2 × 343 m/s = 686 m/s

This is equivalent to:

  • 686 × 3.6 = 2469.6 km/h
  • 686 × 2.23694 = 1535.4 mph
  • 686 / 0.514444 = 1333.8 knots

Applications

This calculator is useful for aerospace engineers, physicists, and anyone working with high-speed vehicles. It helps convert between Mach number and actual velocity in different units.