Free Pet Tools

Pet Calculators for Dogs & Cats

A free toolkit for pet parents and breeders. Estimate pregnancy due dates, predict adult size, plan a breeding, and explore coat color genetics, for both dogs and cats.

Choose Your Pet

Two Toolkits, One Place

Pick your animal to see every free calculator for its reproduction, growth, and genetics.

Dog Calculators

Pregnancy and due dates, whelping, heat cycle, ovulation, puppy adult weight, age, and coat color genetics. Six free tools for every stage.

Open dog tools

Cat Calculators

Cat pregnancy and due dates, kitten growth, coat color genetics, and cat age in human years.

Open cat tools