All Biology calculators6 calculators

Pets, plants & life sciences

• Dog Age CalculatorConvert dog years to human years using breed size and the modern logarithmic formula — far more accurate than ×7.
• Cat Age CalculatorConvert cat years to human years with the AAFP life-stage model — from kitten to senior feline.
• Punnett Square CalculatorCross two parent genotypes for a single trait and get the offspring genotype ratio, phenotype split, and carrier probability.
• Hardy-Weinberg Equilibrium CalculatorFrom the recessive phenotype frequency, derive allele frequencies p and q, plus heterozygote (carrier) and homozygous dominant shares of the population.
• Bacterial Growth CalculatorModel exponential microbial growth — enter the starting count, doubling time, and incubation time to project the final population and fold-change.
• Generation Time CalculatorWork backwards from two cell counts and the elapsed time to find doubling time and the specific growth rate of a culture.