# Rf Power Density Calculator

Posted by Dinesh onThis calculator calculates the **power density** using input power (p), power gain (g), distance to the center of antenna (r) values.

## Rf Power Density Calculation

### Formula:

S = P * G / (4 * PI * R^{2})

S = Power Density,

P = Power Input,

G = Power Gain,

R = Distance to the Center of Antenna,

PI = 3.14