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GC Content Calculator

Enter Query Sequence

Result & Formula

Composition Summary
GC Content 0.00
Length 0
Base Count Percentage
A 0 0.00
C 0 0.00
G 0 0.00
T/U 0 0.00
Other 0 0.00
GC content = (G + C) / Length × 100%

FASTA headers are ignored. Bases A, C, G, T/U are counted individually and any other characters are grouped as Other.