Noise may enter electronic systems from a variety of sources, including resistors, semiconductors, and active devices such as amplifiers. Understanding the noise characteristics of electronic components and systems is therefore essential for optimising their performance.

The noise factor (F) of a device/circuit is the ratio of the signal-to-noise ratio at the input (SNRi) to the signal-to-noise ratio at the output (SNRo). The Noise figure (NF) is just the decibel of the Noise factor; i.e.;, NF is the noise factor’s logarithmic value.

The Noise Figure to Noise Factor converter makes it easier to convert noise data from one unit to another. To use the calculator, input the number in Noise Figure and the calculator will convert it to Noise Factor automatically. This conversion is significant because Noise Figure is a logarithmic measure of noise, but Noise Factor is a linear measure, which makes comparing the noise contribution of various components easier.