Free Pet Calculators & Care Tools

Pet calculators can make everyday care easier. Use our free tools to estimate age, food needs, body condition, pregnancy, and other care needs for cats and dogs.

Featured Pet Calculators

Helpful calculators for everyday cat and dog care.

Dog Age Calculator

Estimate your dog’s age in human years.

Cat Age Calculator

Estimate your cat’s age in human years.

Cat Food Calculator

Estimate your cat’s daily food needs.

Cat Calorie Calculator

Estimate your cat’s daily calorie needs.

Browse Pet Calculator Categories

Find helpful tools by pet care topic.

Health

12 Tools

Nutrition

15 Tools

Growth

10 Tools

Weight

8 Tools

Care

14 Tools

Training

9 Tools

Cost

6 Tools

Fun

7 Tools

Cat Calculators & Tools

Helpful tools for your cat’s everyday care.

Cat Age Calculator

Estimate your cat’s age in human years.

Cat Benadryl Dosage Calculator

Estimate a Benadryl dosage based on your cat’s weight.

Cat BMI Calculator

Estimate your cat’s body condition using weight and size.

Cat Calorie Calculator

Estimate your cat’s daily calorie needs.

Cat Quality of Life Calculator

Assess factors related to your cat’s everyday quality of life.

Cat Chocolate Toxicity Calculator

Estimate potential chocolate toxicity risk for your cat.

Cat Fish Oil Dosage Calculator

Estimate a fish oil amount based on your cat’s weight.

Cephalexin For Cats Dosage Calculator

Estimate a cephalexin dosage based on your cat’s weight.

Cat Pregnancy Calculator

Estimate your cat’s pregnancy timeline and expected due date.

How Big Will My Cat Get Calculator

Estimate your kitten’s adult size and weight.

Metacam Dosage Calculator for Cats

Estimate a Metacam dosage based on your cat’s weight.

Quiz: Cat Age Calculator

Test your knowledge about cat ages with a quick quiz.

Cat Food Calculator

Estimate your cat’s daily food needs.

Dog Calculators & Tools

Helpful tools for your dog’s everyday care.

Dog Age Calculator

Estimate your dog’s age in human years.

Dog BMI Calculator

Estimate your dog’s body condition using weight and size.

Pet Care Note: Our calculators provide general estimates and educational information. For professional pet health guidance, visit the American Veterinary Medical Association’s pet owner resources.