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Bandwidth Efficiency (Spectral Efficiency) Calculator

η = bit rate / bandwidth — bits per second per Hertz.

Calculates spectral efficiency η = R_b / B (bit/s/Hz), where R_b is the bit rate and B is the bandwidth. Shannon limit: η_max = log₂(1 + SNR) bits/s/Hz.

Daniel Oh By Daniel Oh
Published Last reviewed 1 min read

Inputs

bps
Hz

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

η = R_b / B; η_max = log₂(1+SNR)

In depth

Calculates spectral efficiency η = R_b / B (bit/s/Hz), where R_b is the bit rate and B is the bandwidth. Shannon limit: η_max = log₂(1 + SNR) bits/s/Hz.