Biology calculators
Genetics, cell growth, and lab counting tools for coursework and the bench.
Biology calculators on pancalc support coursework, lab prep, and bench-side sanity checks — from Punnett squares and Hardy–Weinberg frequencies to cell counting and primer melting temperatures. Each tool documents the relationship it implements so you can reproduce results without hidden spreadsheet logic.
Use these pages when you need a quick, unit-aware estimate before setting up a plate, interpreting a genotype ratio, or explaining a lab calculation to a teammate. They are teaching and planning aids, not substitutes for validated lab protocols or clinical decision-making.
Every biology calculator includes worked examples, formula notes, and practical tips specific to that tool. When precision matters for publication or patient care, confirm against your institutional SOPs and primary literature.
8 calculators
Cell Doubling Time Calculator
Calculate cell doubling time from initial and final counts and culture duration to plan passages, compare growth rates, and monitor cell cultures.
Cell Viability & Cytotoxicity Calculator
Calculate live-cell viability and cytotoxicity percentages from live and dead cell counts for clear, repeatable cell-culture experiment summaries.
DNA Percent GC Content Calculator
Calculate DNA GC content from A, T, G, and C base counts to compare sequences, assess composition, and support primer-design planning.
Hardy-Weinberg Equilibrium Calculator
Calculate expected Hardy-Weinberg allele and genotype frequencies from p or recessive phenotype frequency for population-genetics teaching and analysis.
Hemocytometer Cell Counter
Calculate cells per milliliter from hemocytometer counts, dilution factor, and squares counted for practical cell-culture and laboratory counting workflows.
MOI (Multiplicity of Infection) Calculator
Calculate multiplicity of infection, infectious units, or target cells to plan laboratory viral-transduction and infection experiments with transparent inputs.
Primer Melting Temperature (Tm) Calculator
Estimate DNA primer melting temperature from oligo length, GC content, and sodium concentration for quick, practical PCR primer-planning comparisons.
Punnett Square Calculator
Predict monohybrid offspring genotype and dominant-phenotype probabilities from parental allele counts with a clear digital Punnett square calculation.