Pet Calculators
Free, verified pet calculators with step-by-step guides and reference data.
Cat Coat Color Calculator: Kitten Genetics Predictor (Punnett Square)
Predict kitten coat colors from parent genetics using Punnett squares. Covers B, D, O, and A loci — black, chocolate, cinnamon, dilutes, and tortoiseshell.
Fish Tank Stocking Calculator: Inch-per-Gallon, Surface Area & Bioload
Calculate how many fish your aquarium can hold using 3 methods: inch-per-gallon, surface area, and bioload. Fresh and saltwater. 13 preset species.