Shannon Capacity
Estimate the theoretical maximum error-free data rate for an ideal noisy channel. Use it as a ceiling for telemetry, satellite links, and RF link-budget trade studies.
Capacity limit
Channel capacity
3.459 Mbps
3,459,432 bps
Spectral efficiency
3.459
bits/s/Hz at the Shannon limit
10.00 dB
10.000 linear power ratio
4.61 dB
2.891 linear
Capacity grows linearly with bandwidth and logarithmically with SNR
The curve shows the logarithmic SNR payoff; the bandwidth strip shows why wider channels scale capacity directly.
Spectral efficiency limit
capacity per hertz vs received SNR
Bandwidth scaling at fixed SNR
1.000 MHz
3.459 b/s/Hz
C = B log2(1 + SNR)
Open Source and Easy to Use Elsewhere
This tool is open source and the underlying logic is fully transparent. You can inspect the code, understand the calculations, and contribute improvements. If you want to use the tool in your own website, course page, or learning platform, you can also embed it directly and start from a ready-made iframe setup for this exact tool.
Open source: review the implementation and see how the results are produced.
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