🐕 Dog BMI Calculator
Get a simplified body-mass-index style estimate for your dog based on weight and height at the shoulder (withers).
What This Calculator Does
This calculator gives a simplified body-mass-index style estimate for dogs, using the same weight-to-height-squared approach as human BMI, adapted for a dog’s weight and shoulder height.
The Formula
The calculation is BMI = Weight (kg) / Height (m)², using height measured at the withers (top of the shoulders). Unlike humans, there is no single universally standardized BMI scale for dogs; body condition scoring (a 1-9 visual and hands-on scale used by veterinarians) is the accepted clinical method for assessing a dog’s weight status.
- Weigh your dog on a scale in kilograms.
- Measure height from the ground to the top of the shoulder blades.
Treat this number as a rough, general-reference estimate only, not a veterinary diagnosis. Body shape varies enormously between breeds, so ask your veterinarian for a proper body condition score assessment for an accurate picture of your dog’s weight health.