Cat Calorie Calculator
Estimate your cat’s daily calorie needs based on weight, age, and lifestyle. Perfect for kittens, adult cats, and cats on weight management plans.
Why Use a Cat Calorie Calculator?
Cats, like humans, need the right balance of calories to stay healthy, active, and at an ideal body weight. Overfeeding can lead to obesity, diabetes, and liver problems, while underfeeding may cause malnutrition, weakness, or poor coat health.
Our Cat Calorie Calculator takes the guesswork out of feeding. By entering your cat’s weight and selecting its life stage or lifestyle (neutered adult, intact, kitten, weight loss, or gain), the calculator instantly provides a safe daily calorie estimate.
How Does the Cat Calorie Calculator Work?
The calculation is based on the veterinary formula for Resting Energy Requirement (RER):
RER = 70 × (Body Weight in kg0.75)
The RER is then multiplied by a lifestyle factor:
- Neutered adult cat: 1.2 × RER
- Non-neutered adult cat: 1.4 × RER
- Kitten (0–4 months): 2.5 × RER
- Kitten (4 months–adult): 2 × RER
- Weight loss: 0.8 × RER
- Weight gain: 1.2 × RER
This ensures calorie recommendations are personalized to your cat’s needs.
Benefits of Using a Cat Food Calculator
- Prevents obesity in indoor cats.
- Supports healthy growth in kittens.
- Adjusts diet for cats needing weight management.
- Improves energy and supports a healthy coat.
- Backed by veterinary nutrition standards.
FAQs About Cat Calories & Feeding
1. How many calories does my cat need daily?
On average, an indoor adult cat needs about 200–300 calories per day, but exact needs depend on weight, age, and lifestyle. This calculator uses the RER formula plus activity multipliers for accuracy.
2. Do kittens need more calories than adult cats?
Yes. Kittens require 2–2.5 times more calories than adult cats because of rapid growth and playfulness. The calculator accounts for this automatically.
3. Do neutered cats require fewer calories?
Yes. Neutered or spayed cats typically need about 20–30% fewer calories due to lower metabolism. That’s why a separate multiplier is included.
4. Can I use this calculator for overweight cats?
Absolutely. Select weight loss mode to receive a reduced calorie recommendation that promotes safe weight reduction.
5. Is this calculator accurate for all breeds?
It works well for most cats — from domestic shorthairs to Persians, Siamese, and Maine Coons. Highly active outdoor cats may need more calories, but this tool provides an excellent baseline.
Always combine calorie control with a balanced feline diet rich in protein, healthy fats, vitamins, and minerals. For tailored advice, consult your veterinarian.