Technology & Computing
Shannon-Hartley Channel Capacity Calculator
Calculate the theoretical maximum data rate of a noisy communication channel using the Shannon-Hartley theorem.
Your inputs
Change any value to update the result instantly.
Channel capacity
133.1642 Mbps
Channel capacity
13,31,64,229.655 bps
Bandwidth
20 MHz
SNR (linear)
100
This is the theoretical upper bound on error-free data rate — real-world modulation and coding always achieve somewhat less.
Formula and working
C (bps) = Bandwidth (Hz) × log2(1 + SNR), where SNR (linear) = 10^(SNR dB ÷ 10)
- 1
Collect the inputs
Bandwidth = 20,000,000 Hz; Signal-to-noise ratio = 20 dB
- 2
Apply the formula
C (bps) = Bandwidth (Hz) × log2(1 + SNR), where SNR (linear) = 10^(SNR dB ÷ 10)
- 3
Result
Channel capacity = 133.1642 Mbps
Frequently asked questions
Important limitation
This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.
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