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# Mach Number

Not Reviewed

Equation / Last modified by KurtHeckman on 2018/08/15 18:26
`M = `

Tags:

Rating

ID

Carol.Mach Number

UUID

19b3675f-f2fd-11e3-b7aa-bc764e2038f2

The **Mach Number** calculator computes the mach speed of an object based on the velocity of the object and the local speed of sound.

**INSTRUCTIONS:** Choose units and enter the following:

- (
**V**) This is the velocity of the object - (
**V**) This is the localized Speed of Sound_{s}

**Mach Number (M):** The calculator returns the mach number rounded to the nearest 1,000^{th}

#### Related Calculators

- Mach Number from Velocity and Local Speed of Sound
- Mach Number from Velocity, Density and Bulk Modulus
- Formula for the Speed of Sound
- Speed of Sound in Dry Air
- Knudsen Number
- Distance Sound has Traveled

#### The Math / Science

Mach number (M or Ma) is a dimensionless quantity representing the ratio of speed of an object moving through a fluid and the local speed of sound

The formula for Mach Number is:

`M = V / V_s `

where:

- M is the Mach Number
- V is the velocity of the object
- V
_{s}is the localized Speed of Sound

The Speed of Sound in dry air is 343.2 meters per second