Hardy-Weinberg Calculator
Compute the expected genotype frequencies (AA, Aa, aa) under Hardy-Weinberg equilibrium from a single allele frequency.
Human body, genetics, and life-science calculations.
Quick reference calculators for the life sciences — Punnett squares, lung capacity, protein requirements, population growth, and more.
Compute the expected genotype frequencies (AA, Aa, aa) under Hardy-Weinberg equilibrium from a single allele frequency.
Compute the probability that a single offspring shows the recessive phenotype for a single autosomal gene, given the gen...
Compute the generation time (doubling time) of a microbial culture given the starting and final cell counts and the elap...
Compute the frequency of two alleles in a population from observed counts of homozygous-dominant, heterozygous, and homo...
Compute the initial reaction velocity v of an enzyme-catalysed reaction at a given substrate concentration [S], using th...
Compute how long a population (or culture, or investment) takes to double at a constant exponential growth rate using th...
Compute the time required for a bacterial culture to grow from a starting count N₀ to a target count N, given a fixed do...
Project bacterial population size from an initial cell count, the generation (doubling) time, and elapsed time.
Estimate the DNA melting temperature (Tm) of a short DNA oligonucleotide using two common approximations: the Wallace ru...
Project population size at time t using the logistic model with intrinsic growth rate and carrying capacity.
Compute DNA concentration in ng/μL from a spectrophotometer absorbance reading at 260 nm and the cuvette dilution factor...
Given the ABO genotype of each parent (AA, AO, BB, BO, AB, or OO), compute the probability that a child has each ABO blo...
Estimate body fat percentage using the Body Adiposity Index, an alternative to BMI based on hip circumference and height...
Compute the herd immunity threshold p_c = 1 − 1/R₀ — the minimum fraction of the population that must be immune to preve...
Estimate blood alcohol content using the Widmark formula from drinks consumed, body weight, sex, and time elapsed.
Compute the Lineweaver-Burk reciprocals 1/v and 1/[S] from a single substrate concentration and reaction velocity, plus...
Compute the expected offspring counts in each phenotypic class (9:3:3:1) for a dihybrid cross between two heterozygotes...
Estimate the date of conception either from a known due date (subtracting 266 days) or from the first day of your last m...
Compute the expected offspring counts in each phenotypic class (3:1 dominant:recessive) for a monohybrid cross between t...
Estimate the expected delivery date for common pet and livestock species from the breeding date and the species-specific...
Compute the net photosynthesis rate P at light intensity I using a Michaelis-Menten light-response curve: P = P_max · I...
Advance one Euler timestep of the Lotka-Volterra prey-predator equations: dx/dt = αx − βxy and dy/dt = δxy − γy. Reports...
Compute the equilibrium frequency of a deleterious recessive allele under mutation-selection balance for a randomly mati...
Compute the leaf-area index (LAI) of a stand: LAI = total one-sided leaf area / ground area. Reports the LAI dimensionle...