How to use it
- Enter your dog's current weight and pick the correct unit.
- Choose the closest age, neuter, or reproductive stage.
- Use the result as the calorie budget for food splitting, not as a one-food portion.
Dog Calorie Calculator
Estimate a dog's daily calorie target from weight, age, neuter status, activity, and feeding goal.
When to double-check
- Puppies, pregnant dogs, lactating dogs, and working dogs can need frequent adjustments.
- Weight is changing quickly, appetite is unusual, or body condition is unclear.
- You need advice for a medical condition or prescription food.
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Frequently Asked Questions
How are a dog's daily calorie needs calculated?
We first determine the Resting Energy Requirement (RER) using AVMA standards: RER = 70 * (weight in kg)^0.75. We then multiply RER by a factor corresponding to the dog's life stage, neuter status, and activity level (ranging from 0.8 for weight loss to 3.0+ for growing puppies or working dogs).
Why does spaying or neutering change a dog's metabolic needs?
Spaying or neutering removes sex hormone production, which naturally slows down a dog's metabolic rate and decreases their voluntary physical activity. On average, a dog's daily energy requirement drops by 20-30% post-procedure, making calorie adjustment crucial to prevent obesity.
How do I adjust calories for active or working dogs?
High-activity and working breeds (like hunting, herding, or agility dogs) can burn significantly more calories. Their daily multiplier can range from 2.0x to 5.0x RER depending on intensity. If your dog is highly active, monitor their body condition score (BCS) closely and adjust upwards if they show visible ribs.
What is a safe rate of weight loss for overweight dogs?
Safe weight loss should be gradual, targetting 1% to 2% of their body weight per week. Under our 'Gradual weight loss' mode, the calculator applies a restriction of approximately 60-80% of their maintenance energy requirement. Never starve your dog; always consult a vet for severe obesity.
This site provides estimates and planning tools only. It does not replace veterinary advice, diagnosis, or treatment.