Pet Calculators
Every pet ages on its own clock. See what your rabbit, horse, hamster, guinea pig, turtle, tortoise, or cockatiel's age actually means in human years, each one modeled on that species' own real lifespan and growth curve.
CalculatorPOPRabbit Age CalculatorRabbit Age CalculatorConvert your rabbit's age into human years across thirteen breeds, from Netherland Dwarf to Continental Giant, each with its own size, lifespan, and personality archetype.Try itCalculatorPOPHorse Age CalculatorHorse Age CalculatorConvert your horse's age into human years with the standard staged conversion, across ponies, light horses, and draft breeds.Try itCalculatorPOPHamster Age CalculatorHamster Age CalculatorConvert your hamster's age into human years across five species, from short-lived Syrian and dwarf hamsters to the slower-aging Roborovski.Try itCalculatorPOPGuinea Pig Age CalculatorGuinea Pig Age CalculatorConvert your guinea pig's age into human years across six breeds, from American and Abyssinian to hairless Skinny Pigs.Try itCalculatorPOPTurtle & Tortoise Age CalculatorTurtle & Tortoise Age CalculatorConvert your turtle or tortoise's age into human years across six species, from 30-year red-eared sliders to century-lifespan Greek tortoises.Try itCalculatorPOPCockatiel Age CalculatorCockatiel Age CalculatorConvert your cockatiel's age into human years based on real lifespan ranges, from well-cared-for birds in their 20s to shorter, average-care lifespans.Try itCalculatorPOPDog Age CalculatorDog Age CalculatorConvert your dog's age into human years using the 2020 UC San Diego epigenetic aging formula, not the old multiply-by-7 rule.Try itCalculatorPOPCat Age CalculatorCat Age CalculatorConvert your cat's age into human years using International Cat Care's 15-9-4 chart, from kitten to senior.Try itCalculatorPOPAnimal Age CalculatorAnimal Age CalculatorConvert any pet's age into human years across eleven species, from dogs and cats to ferrets, chinchillas, and bearded dragons, all in one place.Try itCalculatorPOPPuppy Weight CalculatorPuppy Weight CalculatorEstimate your puppy's adult weight from its current weight and age in weeks, using the standard weeks-to-adult growth projection.Try itCalculatorPOPDog Crate Size CalculatorDog Crate Size CalculatorFind the right dog crate size from your dog's measurements or weight, using the standard nose-to-tail-plus-4-inches rule.Try itCalculatorPOPHorse Weight CalculatorHorse Weight CalculatorEstimate a horse or pony's bodyweight from a heart girth and body length tape measurement, using the Carroll and Huntington formula.Try itCalculatorPOPRabbit Gestation CalculatorRabbit Gestation CalculatorEnter a rabbit's breeding date to get an expected kindling window, average due date, and when nest-building typically starts.Try itCalculatorPOPDog Calorie CalculatorDog Calorie CalculatorCalculate your dog's daily calorie needs using the veterinary RER and MER formula, with a life-stage and activity multiplier table.Try itCalculatorPOPPuppy Food CalculatorPuppy Food CalculatorWork out how much to feed your puppy each day, in cups and meals, based on weight, age, and your food's calorie density.Try itCalculatorPOPPond Fish Stocking CalculatorPond Fish Stocking CalculatorWork out how many fish your pond can safely hold based on surface area, not volume, plus rough koi and goldfish headcounts.Try itCalculatorPOPGuinea Pig Gestation CalculatorGuinea Pig Gestation CalculatorEnter a guinea pig's breeding date to get an expected delivery window, typical due date, and the first-time-sow age safety limit.Try itCalculatorPOPBird Cage Size CalculatorBird Cage Size CalculatorGet minimum cage width, depth, and height for your bird based on its wingspan and body length, not just the box size on the shelf.Try itCalculatorPOPFish Tank Stocking CalculatorFish Tank Stocking CalculatorEstimate a beginner-safe max fish length for your freshwater tank using the classic inch-per-gallon rule, with honest caveats.Try itCalculatorPOPFish Tank Size CalculatorFish Tank Size CalculatorConvert your fish tank's length, width, and height into water volume in liters and US gallons.Try itCalculatorPOPHamster Cage Size CalculatorHamster Cage Size CalculatorCheck your hamster cage's unbroken floor footprint against updated Syrian and dwarf welfare minimums, with a clear pass/fail.Try itCalculatorPOPFerret Age CalculatorFerret Age CalculatorConvert your ferret's age into human years based on neuter history, the single biggest documented factor in ferret lifespan and adrenal disease risk.Try itCalculatorPOPChinchilla Age CalculatorChinchilla Age CalculatorConvert your chinchilla's age into human years using the standard two-stage formula, 12 years per chinchilla year for the first 2 years, then 4 after that.Try itCalculatorPOPBearded Dragon Age CalculatorBearded Dragon Age CalculatorConvert your bearded dragon's age into human years based on husbandry quality, the biggest documented factor in reptile lifespan, not morph or breed.Try itCalculatorPOPDog Water Intake CalculatorDog Water Intake CalculatorCalculate how much water your dog should drink daily from its weight, diet type, and heat or activity level, with the full breakdown shown.Try it