Amps (Current) to dBm Conversion Calculator

This tool converts a Current value in Amps (Ampere), mA, μA, nA to its equivalent Power value in dBm.

Enter

• Current (I). Select units: A/mA/μA/nA/pA
• Impedance (Z). The default value is 50 ohm although it can be changed to any value

🔁 dBm to Amp

Formula

                                P_dBm = 20*Log₁₀(I) + 10*Log₁₀(Z) + 30

Example Calculation

For a current value of 1 Amp and Impedance of 50 ohm, the equivalent power P_dBm is 47 dBm.

For the same value of current and a resistance of 75 ohm, P_dBm is 48.75 dBm.