Dog calculators

Science-backed calculators for dog owners: age in human years, adult weight, due date, daily calories and chocolate toxicity. Every number cites its source.

• 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 →

Looking for a specific breed? Browse adult weights for all 159 breeds.