It uses the same RER formula veterinarians use. That said, every dog is different. A husky pulling sleds needs way more than a pug watching Netflix. Use this as a starting point, then adjust based on your dog's body condition. If your dog is losing or gaining weight unexpectedly, talk to your vet.
No! Cut back gradually — about 10% per week. Sudden calorie drops mess with metabolism and your dog will act like you are starving them to death. Trust me, the guilt trips are real. Slow and steady wins the race. Most vets recommend a weight loss rate of 1-2% of body weight per week.
Absolutely. Those "just one" treats add up fast. A medium milk bone is about 40 kcal. Give five a day? That is 200 kcal your dog does not need. Either subtract from meals or switch to low-cal options like carrot sticks. Treats should not exceed 10% of daily calories.
Run your hands along their ribs. You should feel them easily, like piano keys under a thin blanket. If you need to dig, they are overweight. If ribs are visible, they are underweight. You should also see a waist when looking from above. Use our BMI Check tool for a more detailed assessment.
Technically no — cats have different metabolic needs. But honestly? The math is similar. Just know that cats are obligate carnivores and need way more protein. We might build a cat version if enough people ask. For now, consult your vet for cat-specific advice.
Spayed and neutered dogs need about 25% fewer calories than intact dogs. Hormones affect metabolism, and without them, dogs burn calories more slowly. Most owners do not know this and keep feeding the same amount after surgery. That is how dogs gain weight post-neuter.
Monthly for puppies (they grow fast). Every 2-3 months for adults. Anytime your dog's weight changes by more than 5%. Anytime you switch food brands (calorie density varies). Anytime activity level changes significantly (e.g., summer hiking season starts).
Talk to your vet. Dogs with diabetes, kidney disease, thyroid issues, or other conditions need specialized diets that our calculator cannot account for. This tool is for healthy dogs with standard nutritional needs. Never use it to manage a medical condition without veterinary guidance.