Signal-to-noise ratio is typically expressed as a ratio in dB. Use this calculator to convert from

- dB to linear voltage
- dB to linear power

Signal and Noise Voltage units can be volt, millivolt, microvolt or nanovolt

Signal and Noise Power units can be watt, milliwatt, microwatt, nanowatt

Note that the result of this calculation is a ratio and as such has no units.

**Formula**

**SNR _{linear volt} = 10^(SNR_{dB}/20)**

**SNR _{linear power} = 10^(SNR_{dB}/10)**