Punnett square, Hardy-Weinberg, allele frequency, and inheritance calculators. Browse our free genetics tools below — all calculators are instant, accurate, and require no sign-up.
Allele Frequency Calculator — Calculate allele and genotype frequencies using Hardy-Weinberg equilibrium. Supports observed counts, chi-square testing, and population genetics analysis.
DNA Concentration Calculator — Calculate DNA concentration from absorbance (A260), nanodrop data, molar conversions, and purity ratios. Covers dsDNA, ssDNA, RNA, and oligonucleotides.
DNA Copy Number Calculator — Calculate DNA copy number from mass and length. Convert ng to copies for qPCR standards, plasmid dilutions, and NGS library quantification.
DNA to mRNA Transcription Calculator — Transcribe a DNA sequence to mRNA, find codons, translate to amino acids, and calculate molecular properties. Supports template and coding strand input.
Protein Concentration Calculator — Calculate protein concentration using Bradford, BCA, A280 absorbance, and Beer-Lambert methods. Includes BSA standard curve fitting and dilution planning.
Protein Molecular Weight Calculator — Calculate protein molecular weight from amino acid sequence or composition. Covers residue weights, pI estimation, extinction coefficient, and charge at pH.
Punnett Square Calculator — Generate Punnett squares for monohybrid (2×2) and dihybrid (4×4) crosses. Color-coded grids, phenotype ratio bars, genotype breakdown tables, inheritance pattern detection, and common cross presets.
qPCR Efficiency Calculator — Calculate qPCR amplification efficiency from standard curve slope. Includes R², dynamic range, LOD estimation, and ΔΔCt fold-change analysis.