This tool converts Noise Figure (**NF**) to Noise Factor (**F**).

Enter NF in dB. It should be a number greater than 0.

**Formula**

**F = 10 ^{NF/10}**

NF is in **dB**

**Background**

Noise factor (F) is defined as the degradation in Signal-to-Noise ratio due to a component in a signal chain [1].

**F = SNR _{in}/SNR_{out}**

Where **SNR _{in}** and

**SNR**are the input and output Signal-to-noise ratios, respectively. F is a linear quantity.

_{out}Since the SNR at the output of a component or subsystem is always lower than at the input, the Noise Factor **F > 1**.

Noise factor is used in a cascaded noise analysis also known as Friis formula.

**Example Calculation**

For a noise figure of 0.8 dB, the noise factor is 1.20.