Pet Calculators

Choose the right calculator

Age estimates for pets with clear limitations.

Dog Age Calculator

Estimate a dog’s human-age equivalent from its age and adult size. This is general guidance, not veterinary advice.

Cat Age Calculator

Estimate a cat’s human-age equivalent and life stage from AAHA reference ages. The result is indicative.

Dog Pregnancy Calculator

Estimate a dog’s whelping window from a breeding date or a veterinary-determined ovulation date.

Cat Pregnancy Calculator

Estimate a cat’s kittening window from a mating date; this cannot diagnose pregnancy.

Aquarium Calculator

Calculate gross and estimated net aquarium volume, water-change amount, and optional flow or heating values from your own assumptions.

Dog Food Calculator

Estimate healthy adult dog energy and food amounts using your food label density. This is not a diagnosis or therapeutic feeding plan.

Cat Calorie Calculator

Estimate healthy adult cat energy and food amounts using your food label density. This is not a diagnosis or therapeutic feeding plan.