Codon Usage Calculator

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Analyze codon usage frequency, GC content, and amino acid composition in DNA/RNA sequences.

Sequence Type *

Significant Figures

Sequence (5' → 3') *

For DNA: A, T, G, C only. For RNA: A, U, G, C only. Sequence should be in-frame (length multiple of 3).

Genetic Code

Show Details

Show Amino Acid Summary

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Codon Usage Analysis

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Length

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nt / codons

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GC Content

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Unique Codons

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out of 64

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Amino Acids

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Unique types

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Codon Usage Table

Frequency and percentage of each codon

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Frequency of each amino acid

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Complete codon usage information

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Standard genetic code

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Understanding codon usage

🧬 Biological Disclaimer: This calculator provides estimates for educational purposes. Actual codon usage varies between organisms and genes.