Free Pet Calculators
Helpful tools for dog, cat, fish, and small animal owners. Calculate food portions, health metrics, and care costs.
Dogs & Cats
Dog Age Calculator
Convert dog years to human years
Cat Age Calculator
Convert cat years to human years
Dog Food Calculator
Daily food portions for dogs
Cat Food Calculator
Daily calories & food for cats
Puppy Weight Predictor
Estimate adult weight
Dog Body Condition
Assess your dog's weight status
Cat Litter Box Calculator
How many litter boxes needed
Raw Dog Food Calculator
BARF diet portions
Dog Pregnancy Calculator
Whelping due date
Cat Pregnancy Calculator
Kitten due date
Dog Ideal Weight
Target healthy weight
Aquarium
Other Pets
Pet Costs
About Our Pet Calculators
PetCalcs provides free, accurate calculators to help pet owners make informed decisions about their pets' health, nutrition, and care. Our tools cover dogs, cats, fish, reptiles, birds, and small animals.
Important: These calculators are for informational purposes only and should not replace professional veterinary advice. Always consult your veterinarian for medical decisions about your pet.