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Dog BMI Tool

Calculate your dog's Body Mass Index (BMI) to see if they are at a healthy weight.

Tool
kg
cm

Understanding Body Condition Score (BCS)

While BMI can be a helpful starting point, veterinarians rarely use it alone. Instead, they rely on the 9-point Body Condition Score (BCS), which involves feeling your dog's ribs and waist.

The BCS is considered the "source of truth" for assessing a dog's weight.

Score Category Description
1-3 Underweight Ribs, lumbar vertebrae, and pelvic bones are easily visible. No palpable fat. Obvious waist and abdominal tuck.
4-5 Ideal Ribs easily palpable with minimal fat covering. Waist easily noted when viewed from above. Abdominal tuck evident.
6-7 Overweight Ribs palpable with slight excess fat covering. Waist is discernible from above but not prominent. Abdominal tuck may be absent.
8-9 Obese Ribs not palpable under heavy fat cover. Heavy fat deposits over lumbar area and base of tail. Waist absent. No abdominal tuck.

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