This tool converts from **dBm** (dB-milliwatt) to **dBuV **(dB-microvolt).

- The default impedance is 50 Ω although it can be changed to any value.
- Microvolt is a Root-mean-square (RMS) quantity

**Formula**

**dBuV = dBm + 10*Log _{10}(Z) + 90**

**Example Calculation**

**-90 dBm** into **25 ohm** gives a value of **14 dBuV**.