Pets & Animals
Free Pets & Animals calculators with instant results, clear explanations and worked examples — no sign-up, available in 9 languages.
All Pets & Animals calculators
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Cat Age Calculator (Cat Years to Human Years)
Convert your cat's age to human years with the vet 15-9-4 method and see its AAHA/AAFP life stage. Not a substitute for veterinary advice.
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Dog Age Calculator — Dog Years to Human Years by Breed Size
Convert your dog’s age to human years using the AKC size-based chart and the UC San Diego epigenetic formula, with the AAHA life stage. Free and instant.
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Dog & Cat Calorie Calculator — Daily Feeding Portions
Work out how much to feed your dog or cat: daily calories (RER and DER) by life stage, converted to cups or grams of your food. Free and instant.
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Puppy Weight Predictor (How Big Will My Puppy Get?)
Estimate your puppy's adult weight from its current age, weight, and breed size, with a growth curve.
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