Pet math, done right.
Simple, science-backed calculators for dog and cat owners: age in human years, adult weight, daily calories and more. Every number cites its source.
Verified against published sources · no sign-up
Dog Calculators
All 5 dog calculators →- Dog Age CalculatorYour dog’s age in human years, the science-based wayOpen →
- Puppy Weight PredictorHow big will your puppy get, by breedOpen →
- Dog Pregnancy CalculatorYour dog’s due date from her mating dateOpen →
- Dog Calorie CalculatorHow many calories your dog needs a dayOpen →
- Dog Chocolate Toxicity CalculatorHow much chocolate is dangerous for your dog, by weightOpen →
Cat Calculators
All 3 cat calculators →Adult weights for 159 dog breeds and 11 cat breeds, all from Wikidata under a public-domain licence. See every source.