Pet Calorie Calculator

Dogs have widely varying calorie needs based on their size, age, and activity level. Small breeds like Chihuahuas may need as few as 200 calories per day, while giant breeds like Great Danes can require over 2,000 calories daily.

Activity level plays a crucial role in determining your dog's calorie needs. A sedentary indoor dog needs significantly fewer calories than an active working dog. Our calculator uses veterinary-standard formulas to account for these differences.

Always monitor your dog's body condition and adjust portions accordingly. You should be able to feel your dog's ribs without pressing hard, and see a visible waist when viewed from above.

Cats are obligate carnivores with unique nutritional needs. Indoor cats typically require fewer calories than outdoor cats due to lower activity levels. Most adult indoor cats need around 20 calories per pound of body weight daily.

Wet food can be particularly beneficial for cats, providing both nutrition and hydration. Many cats prefer the taste and texture of wet food, and it can help prevent urinary tract issues.

Never put a cat on a crash diet. Rapid weight loss in cats can lead to hepatic lipidosis, a serious liver condition. Weight loss should be gradual, under veterinary supervision.

Rabbits have very different nutritional needs than dogs and cats. Their diet should consist primarily of hay (80%), with smaller amounts of pellets (15%) and fresh vegetables (5%). This high-fiber diet is essential for their digestive health.

Timothy hay should be available at all times. It provides the fiber needed for proper gut motility and helps wear down their continuously growing teeth. Pellets should be limited to prevent obesity.

Fresh vegetables provide essential vitamins and minerals. Safe options include romaine lettuce, cilantro, parsley, and other leafy greens. Avoid high-sugar fruits and vegetables that can cause digestive upset.

RER (Resting Energy Requirement) is the amount of energy your pet needs at complete rest. It's calculated using the formula: RER = 70 × (body weight in kg)^0.75. This represents the baseline calories needed for basic bodily functions.

DER (Daily Energy Requirement) accounts for your pet's activity level, age, and other factors. It's calculated by multiplying the RER by an activity factor. This gives you the total calories your pet needs daily.

These calculations provide a starting point, but individual pets may have different needs based on their metabolism, health conditions, and other factors. Always consult with your veterinarian for personalized nutrition advice.