Power & Unit Conversions
dBm to dBµV Calculator
Convert a power level in dBm to a voltage level in dBµV across a known system impedance.
Result
Enter the inputs above and select Calculate.
Formula: V(dBµV) = P(dBm) + 90 + 10 · log₁₀(Z₀)
For the usual 50 Ω system the offset is +107 dB; in 75 Ω it is +108.75 dB.