Frequency Bandwidth Calculator

This tool computes the signal bandwidth from its frequency.

  • Enter the fundamental frequency
  • Pick the signal type (sine, square, triangle or sawtooth)

The units of the signal bandwidth are the same as that of the signal frequency.


A sine wave with a fundamental frequency of 1 GHz has a bandwidth of 1 GHz, while a square wave with the same frequency has a bandwidth of 5 GHz.

Example Applications

  • Rise Time Calculator – use bandwidth to find the rise time of the signal
  • Nyquist Rate Calculator – what’s the sampling rate to avoid aliasing? Once you calculate the bandwidth, use this tool to pick an appropriate oscilloscope or analog-to-digital converter.
  • Nyquist Frequency Calculator gives the maximum frequency of the input signal to avoid aliasing.