Allele Frequency Calculator

Calculate allele frequencies and genotype frequencies using Hardy-Weinberg equilibrium principles.

Enter Population Data

Or Enter Known Frequencies

Results

Enter population data to calculate frequencies

About Hardy-Weinberg Equilibrium

Formulas

  • • p + q = 1
  • • p² + 2pq + q² = 1
  • • p = frequency of allele A
  • • q = frequency of allele a

Genotype Frequencies

  • • AA = p²
  • • Aa = 2pq
  • • aa = q²