Biology calculators

Human body, genetics, and life-science calculations.

Quick reference calculators for the life sciences — Punnett squares, lung capacity, protein requirements, population growth, and more.

Calculators

Topics: All Human Body (6) Genetics (10) Microbiology (9)

Biology / Microbiology

Microbial Generation Time Calculator

Compute the generation time (doubling time) of a microbial culture given the starting and final cell counts and the elap...

basic

14,113 4.9 1 min

Biology / Microbiology

Michaelis-Menten Velocity Calculator

Compute the initial reaction velocity v of an enzyme-catalysed reaction at a given substrate concentration [S], using th...

basic

8,613 4.8 1 min

Biology / Microbiology

Population Doubling Time Calculator

Compute how long a population (or culture, or investment) takes to double at a constant exponential growth rate using th...

basic

7,814 4.6 1 min

Biology / Microbiology

Bacterial Growth Time Calculator

Compute the time required for a bacterial culture to grow from a starting count N₀ to a target count N, given a fixed do...

basic

9,112 4.5 1 min

Biology / Microbiology

Bacterial Growth Calculator

Project bacterial population size from an initial cell count, the generation (doubling) time, and elapsed time.

basic

6,385 3.9 1 min

Biology / Microbiology

Logistic Growth Calculator

Project population size at time t using the logistic model with intrinsic growth rate and carrying capacity.

basic

3,033 5.0 1 min

Biology / Microbiology

DNA Concentration Calculator

Compute DNA concentration in ng/μL from a spectrophotometer absorbance reading at 260 nm and the cuvette dilution factor...

basic

15,067 3.8 1 min

Biology / Microbiology

Herd Immunity Threshold Calculator

Compute the herd immunity threshold p_c = 1 − 1/R₀ — the minimum fraction of the population that must be immune to preve...

basic

8,936 4.4 1 min

Biology / Microbiology

Lineweaver-Burk Plot Calculator

Compute the Lineweaver-Burk reciprocals 1/v and 1/[S] from a single substrate concentration and reaction velocity, plus...

basic

13,319 4.6 1 min

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Quick reference calculators for the life sciences — Punnett squares, lung capacity, protein requirements, population growth, and more.

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Biology calculators

Microbial Generation Time Calculator

Michaelis-Menten Velocity Calculator

Population Doubling Time Calculator

Bacterial Growth Time Calculator

Bacterial Growth Calculator

Logistic Growth Calculator

DNA Concentration Calculator

Herd Immunity Threshold Calculator

Lineweaver-Burk Plot Calculator