Pets & Animals tools
Pet calculators to help you care for your animals, estimate age in human years, plan feeding and calories, and size an aquarium. Each runs in your browser and is for general guidance, not veterinary advice.
Popular Pets & Animals tools
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Dog Age Calculator
Convert your dog’s age to human years using the size-based chart method, with the 2020 epigenetic clock for reference. Calculates in your browser.
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Cat Age Calculator
Convert your cat’s age to human years with the standard feline chart and see its life stage. Calculates in your browser.
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Puppy Weight Calculator
Estimate a puppy’s adult weight from its current weight and age using the linear growth-rate method. Calculates in your browser.
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Pet Food Portion Calculator
Turn a daily calorie target into cups and grams of food per day and per meal, using the energy figures on the bag. Calculates in your browser.
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Pet Calorie Calculator
Estimate a dog or cat’s daily calorie needs from body weight and life stage using the RER and MER veterinary formulas. Calculates in your browser.
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Aquarium Volume Calculator
Find an aquarium’s water volume in litres and gallons from its dimensions, with an allowance for substrate and freeboard. Calculates in your browser.