Power Density Calculator

Output Power Milliwats (mW) Watt (W) Decibel-milliwatt (dBm) Decibel-watt (dBW) Gain Distance Feet (ft) Kilometers (km) Meters (m) Centimeters (cm) Miles (mi) Yards (yd) Inches (in) Feet (ft) Kilometers (km) Meters (m) Centimeters (cm) Miles (mi) Yards (yd) Inches (in)

Output

Power Density (watts/m²):

This Power density calculator allows you to measure the power density from an antenna to a certain distance, by providing the output power and gain values. Generally used in RF and Radar applications, power density is measure of the power in a certain distance from the antenna. Below is the formula to calculate the power density: P_d = P_o*G/4*π*D² Where: P_d = Power density in watts/m²  P_o = Output power from the antenna in watts (W) G = Gain of the antenna D = Distance from the antenna in meters (m)