Pet Nutrition, Aquarium & Animal Care Calculators
Calculate daily feeding calories for dogs and cats, aquarium volume and filter turnover, horse hay requirements, and lifetime pet care costs.
Dog Daily Calorie Calculator
Daily calories and cups of food for a dog by weight and life stage.
Cat Daily Calorie Calculator
Daily calories and cups of food for a cat by weight and life stage.
Pet Food Cost Calculator
Daily, monthly, and yearly food cost plus how long a bag lasts.
Pet Weight Loss Timeline Calculator
How many weeks a pet needs to reach its target weight at a safe weekly pace.
Puppy Adult Weight Calculator
Estimate how much a puppy will weigh when fully grown.
Cat Age in Human Years Calculator
Convert your cat's age to human years and see its life stage.
Pet Daily Water Intake Calculator
How much water a dog or cat needs each day by weight.
Aquarium Volume Calculator
Water volume of a rectangular tank in liters and gallons.
Aquarium Stocking Calculator
Rough number of small fish a tank can hold using the inch-per-gallon rule.
Aquarium Water Change Calculator
How much water to replace to bring nitrate down to your target.
Aquarium Heater Size Calculator
Heater wattage needed to warm a tank from room temperature.
Aquarium Treatment Dose Calculator
Scale a water conditioner or medication dose to your tank volume.
Aquarium Filter Flow Rate Calculator
Pump or filter flow you need for the tank size and turnover you want.
Aquarium Weight Calculator
Total loaded weight of a tank and the load it puts on the floor.
Pet Monthly Cost Calculator
Monthly, yearly, and lifetime cost of owning a pet.
Pet Insurance Break-Even Calculator
Compare your yearly cost with and without pet insurance.
Pet Treat Allowance Calculator
How many treats fit in your pet's daily calorie budget.
Dog Crate Size Calculator
Minimum crate length and height for your dog.
Pet Boarding Cost Calculator
Total cost of boarding one or more pets, with a multi-pet discount.
Horse Hay Needs Calculator
Daily, monthly, and yearly hay for one or more horses.