# Nozzle Area Ratio Calculator

Posted by Dinesh onCalculate

**nozzle area ratio**(A/A*) with varying Mach number and plot on a graph using simple rocket nozzle calculator online.

## Nozzle Area Ratio Calculation

### Formula:

[A / A×] = [1/m × (1+((k-1)/2)m²)/(1+((k-1)/2))]^{[k+2/(2(k-1))]}

where,

A - cross-sectional area of nozzle passage at a given downstream location in nozzle

A* - cross-sectional area of nozzle throat

M - Mach number of flow at a given downstream location in nozzle

A/A* - nozzle area ratio

Note: both Mach number and area ratio are dimensionless.