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Hardy-Weinberg Equilibrium Calculator.

Calculate expected genotype frequencies from allele frequency p under the Hardy-Weinberg model.

On-device calculationNo signup
01

Set your values

Results update as you type.

alleleP: 0.5

alleleP

0.000000
Allele frequency q: 0.5

Allele frequency q

0.000000
Homozygous dominant (p²): 0.25

Homozygous dominant (p²)

0.000000
Heterozygous (2pq): 0.5

Heterozygous (2pq)

0.000000
Homozygous recessive (q²): 0.25

Homozygous recessive (q²)

0.000000
Total frequency: 1

Total frequency

0.0000

Educational arithmetic only. The Hardy-Weinberg and qPCR outputs use the explicitly stated mathematical models; they do not infer experimental, clinical, or veterinary recommendations.

FAQs

What does this calculator assume?

It uses the Hardy-Weinberg model with q = 1 − p and reports expected genotype frequencies; it does not test whether a real population is in equilibrium.