This calculator converts from **dBuV** (dB microvolt) to **dBm** (dB milliwatt). The default impedance is 50 ohm although you can change it to any value.

**Formula**

**dBm = dBμV − 10*Log _{10}(Z) − 90**

**Example Calculation**

A value of **1 dBuV** into **50 ohm** gives **-106 dBm**.