Pet Calorie & Feeding Calculator

Follow WSAVA guidelines to create a tailored nutrition plan for your furry friend and prevent obesity.

1. Pet Details

Breed (Optional)

Current Weight

Weight Unit

Current Status

2. Food Nutrition (For Feeding Amount)

Food Calorie Content

Unit

This tool provides estimates for reference only. Actual feeding amounts should be adjusted based on your pet's body condition changes. If your pet has specific medical conditions (e.g., kidney disease, diabetes), please follow your veterinarian's instructions and do not rely solely on this calculator.

Why Precision Matters

What is this tool?

This professional tool is based on the World Small Animal Veterinary Association (WSAVA) global nutrition guidelines. It uses standard RER and DER formulas to scientifically estimate your pet's daily calorie and food needs based on weight, age, activity level, and neuter status.

Key Features

More than just a calculator, we consider every detail:

Comprehensive Status Support
Covers puppies, kittens, pregnant, neutered, intact, working dogs, and indoor cats, automatically applying the correct metabolic factors.
Custom Food Conversion
Enter the calorie density from your food package (kcal/kg or kcal/100g) to get an exact daily feeding weight in grams.
Weight Management Mode
Supports an 'Ideal Weight' target for overweight pets, helping you plan a safe weight loss journey.
Meal Planning
Instantly calculates portion sizes for 2 or 3 meals a day, making feeding schedules easier.

How to Use

Get professional advice in 3 steps:

Enter Pet Details: Select species, current status (e.g., Adult Neutered), and weight.
Enter Food Info: Check your food bag for calorie content (e.g., 3500 kcal/kg) and enter it.
Get Results: View total daily calorie needs and the exact grams of food to feed.

Why Calculate Calories?

Precise Weight Control
Obesity is a major health risk. Precise calorie control prevents heart disease, diabetes, and joint issues.
No More Guesswork
Stop guessing. Avoid underfeeding or overfeeding by using scientifically calculated amounts.
Adapt to Life Stages
Metabolism changes with age and surgery. This tool helps you adjust feeding strategies instantly.

FAQ

Q: What are RER and DER?

A: RER (Resting Energy Requirement) is the energy needed for basic bodily functions at rest (70 * weight^0.75). DER (Daily Energy Requirement) is the total daily energy need adjusted for activity and life stage.

Q: Does my pet need to lose weight?

A: Vets use BCS (Body Condition Score). Look from above: is there a waist? Feel the ribs: you should feel them easily with a thin layer of fat. If you can't feel ribs or the belly sags, they might be overweight.

Q: Why do neutered pets need fewer calories?

A: Hormonal changes after spay/neuter reduce the metabolic rate by about 15-20% and often decrease activity desire. Continuing the same diet can lead to weight gain.

Q: How is it different for puppies/kittens?

A: Puppies, kittens, and pregnant/nursing pets have high energy needs for growth. Their DER factor can be 2-3x that of an adult. This calculator applies the correct factors automatically.

Q: Are bag feeding guides accurate?

A: Bag guides are averages for a wide range of dogs/cats. Individual metabolism varies greatly, so calculating specific needs based on your pet's status is more accurate.