Dog BMI Calculator
Check your dog’s body condition and weight status
Current Weight (lbs)
Ideal Weight Range (lbs)
Can you easily feel ribs?
Dog BMI vs. Body Condition Score
Dogs don’t have a BMI in the human sense — they don’t have a height component. Our dog BMI calculator instead uses a body condition score (BCS) approach combining actual weight, breed-appropriate ideal weight range, and rib palpation test — the most reliable method used by vets.
Dog Body Condition Score Guide (BCS 1-9)
| BCS | Description | Ribs |
|---|---|---|
| 1-2 | Emaciated | Visible from distance |
| 3 | Underweight | Easy to feel, minimal fat |
| 4-5 | Ideal | Feel easily without pressing |
| 6-7 | Overweight | Need firm pressure to feel |
| 8-9 | Obese | Cannot feel; fat deposits visible |
FAQs
How do I know if my dog is overweight?
The rib test is the fastest check: run your fingers along your dog’s ribcage. You should feel ribs easily without pressing hard. From above, you should see a waist. From the side, there should be a tuck up at the abdomen. If none of these are visible, your dog is likely overweight.
Conclusion
Our dog BMI calculator gives you a body condition assessment based on veterinary principles. For weight loss support, use our weight calculator and calorie calculator to build a healthy feeding plan.