Is my dog overweight? Check by breed.

There is no scientifically validated BMI formula for dogs, so this calculator does not compute weight divided by height squared. Instead it compares your dog's weight to the ideal adult weight range for its breed and reports how far above or below that range the dog sits, plus an approximate 1-9 body condition score. Educational estimate only — not veterinary advice.

Enter your dog's breed and current weight in the calculator above. As a rule of thumb used in veterinary nutrition, a dog 1-29% above its ideal weight is considered overweight and 30% or more above is considered obese. At home, also do the hands-on check: you should feel the ribs easily under a thin fat layer, see a waist from above, and see the belly tuck up from the side.

Veterinarians use the 9-point body condition score (BCS) scale: 1-3 is underweight, 4-5 is ideal, 6-7 is overweight, and 8-9 is obese. Aim to keep your dog around 4 or 5. This tool estimates an approximate BCS from your dog's weight versus its breed's ideal range, but the true score is assessed by look and feel, ideally by your vet.

No. Veterinarians do not use a BMI number for dogs because body shapes vary too much between breeds for any weight-over-height formula to be meaningful. The veterinary gold standard is the hands-on 9-point body condition score (BCS), sometimes combined with muscle condition scoring. This calculator is a screening aid, not a replacement for a vet's assessment.

Breed standards put an adult Labrador Retriever at roughly 29-36 kg (65-80 lb) for males and 25-32 kg (55-70 lb) for females, though working-type Labs often sit at the lighter end. Because build varies, the best target is the weight at which your individual Lab scores 4-5 out of 9 on body condition — ask your vet to confirm it.

No — human BMI cutoffs (18.5, 25, 30) are meaningless for dogs. A healthy Greyhound and a healthy Bulldog have completely different body compositions at the same weight-to-height ratio. Use this dog-specific tool, which compares weight against breed ideal ranges, or see our separate human BMI calculator for people.

This tool answers 'is my dog at a healthy weight?' by comparing current weight to the breed ideal range. A dog calorie calculator answers 'how much should my dog eat?' in kcal per day. Use this tool first to find the weight status, then use our dog calorie calculator with your dog's target (ideal) weight to plan portions. They are companions, not substitutes.

Approximately. Choose the closest size category (toy, small, medium, large, giant) as a rough reference, or better: enter a custom ideal range set by your veterinarian, who can judge your individual dog's frame. The breed database covers 40 popular pure breeds; mixed breeds vary too much for a precise breed-based range.

Adult breed ranges do not apply to growing puppies. Use the Puppy growth check tab instead: enter the breed, age in months, and current weight, and the tool compares it against a generic growth curve as a rough on-track check. Puppies grow at very different rates by breed size, so treat the result as a conversation starter with your vet, not a diagnosis.

Weigh your dog at least monthly — small changes are hard to see under fur, especially in fluffy breeds. Weigh at the same time of day on the same scale, and log the numbers so you can spot a slow drift early. Recheck against this calculator whenever the weight changes noticeably.

Ask your vet for a target weight and a feeding plan first — this tool only points the direction, it does not prescribe portions. General principles vets recommend: feed toward the target weight rather than the current weight, measure every meal, cut back on treats and table scraps, and aim for gradual loss of about 1-2% of body weight per week. Never crash-diet a dog.

Excess weight in dogs is linked to osteoarthritis, diabetes, breathing difficulty, high blood pressure, and certain cancers, and studies suggest lean dogs live on average nearly two years longer than overweight ones. Even 10-15% above ideal weight can worsen joint pain. If your dog scores 6/9 or higher here, book a vet check to make a plan.

Small dogs: step on a bathroom scale holding the dog, then subtract your own weight. Medium and large dogs: train them to stand on a bathroom or luggage-platform scale, or ask your vet clinic — most let you pop in for a free weigh-in. Weigh before meals for consistency.

Because a real body condition score is assessed by feeling the ribs, looking at the waist, and checking the belly tuck — things a weight number alone cannot capture. Two dogs can weigh the same with very different body composition. This tool converts weight position into the closest BCS equivalent as an honest approximation; your vet's hands-on score is the authoritative one.

No. It is an educational screening estimate only — not veterinary advice, diagnosis, or treatment. Always consult your veterinarian before changing your dog's diet, especially for puppies, seniors, pregnant dogs, or dogs with medical conditions such as thyroid or Cushing's disease, which affect weight.

Yes. This tool runs 100% in your browser — your dog's weight and breed selection never leave your device, are never uploaded, and are never stored on any server. There is no account, no tracking of your inputs, and the page works offline once loaded.