CanlıDostumDog & cat ideal weight calculator
Using the body condition score (BCS) vets use, estimate your pet's ideal weight, how much extra weight there is and how long safe weight loss may take.
- Based on the 9-point body condition score
- Safe weekly loss: 1–2% for dogs, 0.5–1% for cats
- Starting calorie target for the ideal weight
Body condition score and ideal weight
Breed averages do not fit every pet. Vets use the 1–9 body condition score; 4 and 5 are ideal.
How to check BCS at home
- Ribs: place your palms on both sides of the chest. You should feel the ribs easily under a thin fat layer.
- From above: there should be a visible waist behind the ribs.
- From the side: the belly should tuck up towards the hind legs.
Calculation method
Safe weight loss
For dogs, 1–2% of body weight per week is considered safe; for cats 0.5–2%, and we use a cautious 0.5–1%. In cats, fasting or rapid weight loss can cause fatty liver disease (hepatic lipidosis), so always plan weight loss with your vet.
Frequently asked questions
How do I know if my dog is overweight?
If the ribs are hard to feel, there is no visible waist from above and the belly sags, the BCS is 6 or more — your dog is likely overweight.
What should my cat weigh?
Most domestic cats weigh 3.5–6 kg (8–13 lb), but body condition score is a better guide. A BCS of 4–5 is ideal.
How fast should a dog lose weight?
About 1–2% of body weight per week. Faster loss can mean muscle loss.
Is fast dieting dangerous for cats?
Yes. Fasting or fast weight loss can cause fatty liver disease in cats. Plan the diet with your vet.
How accurate is this tool?
The BCS method gives an estimate. Muscle mass and breed differences can affect it; your vet sets the exact goal.
Follow the path to ideal weight
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