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Both calculators run independently — change the inputs on either side to compare results.

Gene Expression Fold Change Calculator

Quantify how much a gene is up- or down-regulated between two conditions using the 2^(−ΔΔCt) method from qRT-PCR data. Use this when comparing treated vs. control gene expression levels.

ΔΔCt Value

Fill in the required fields to see your result.

Biology

Hardy-Weinberg Equilibrium Calculator

Verify the Hardy-Weinberg equilibrium identity p² + 2pq + q² = 1 from two allele frequencies. Foundational population-genetics check that, in the absence of evolutionary forces, allele and genotype frequencies remain constant across generations.

Frequency of allele p

Frequency of allele q

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Key differences

	Gene Expression Fold Change Calculator	Hardy-Weinberg Equilibrium Calculator
Category	Biology	Biology
Inputs required	1	2
Result	Fold Change (x)	Total Genotype Frequency
What it does	Quantify how much a gene is up- or down-regulated between two conditions using the 2^(−ΔΔCt) method from qRT-PCR data. Use this when comparing treated vs. control gene expression levels.	Verify the Hardy-Weinberg equilibrium identity p² + 2pq + q² = 1 from two allele frequencies. Foundational population-genetics check that, in the absence of evolutionary forces, allele and genotype frequencies remain constant across generations.