Biology Calculators
Free biology calculators for genetics, molecular biology, and ecology — paste a sequence or enter your values and get results instantly.
Transcribe a DNA sequence to mRNA, tRNA anticodons and amino acids.
Generate monohybrid and dihybrid Punnett squares with phenotype ratios.
Calculate allele frequencies and test for Hardy-Weinberg equilibrium.
Look up the amino acid coded by any mRNA codon interactively.
Calculate the GC percentage of any DNA or RNA sequence.
Calculate concentrations at each step in a serial dilution series.
Model exponential and logistic population growth with graphs.
Calculate your total daily energy expenditure and macro targets.
Find blood type compatibility and predict possible blood types in children.
Estimate body fat percentage using the Navy and BMI methods.
Calculate the molecular weight of a protein from its amino acid sequence.
About these biology calculators
These biology tools handle the sequence analysis and genetic calculations that come up frequently in life science courses. Paste a DNA sequence and instantly get the mRNA transcript, tRNA anticodons, and the resulting amino acid chain — with each codon labelled. Generate complete Punnett squares for mono- and dihybrid crosses and see the phenotype ratio breakdown.
Every tool runs entirely in your browser with no signup required. From molecular biology and genetics to ecology and human physiology — these calculators are ready immediately, with no installation and no data ever leaving your browser.