Watts to dBµA Calculator is a useful tool to convert any power value in W to a current value in dBµA, using the power (in W) and the system impedance Z (in ohms) value entered by the user. The calculator uses the following formula:

Where, 

W – Electrical signal power in Watts (W)
dBµA (decibel-microampere) is the decibel unit for measuring current with reference to one microampere (1 µA). The dBµA unit is used in EMC-conducted emission testing for measuring conducted emission current levels when employing the RF current probe method.

Z- System impedance in ohms.
The Watts to dBµA calculator helps to calculate the current value in dBµA from power in Watts by inputting the power level (in W) and system impedance Z (in ohms). The calculator quickly and accurately calculates dBµA from Watts (W) and impedance (Z). This calculator is a useful tool for engineers dealing with EMC measurements and electronics calculations.