Free Tool
Dog Weight Calculator
Is my dog a healthy weight?
Check if your dog is a healthy weight. Enter their current weight and size to see their ideal range and body condition score — overweight dogs can live up to 2 years less.
Please enter a valid weight.
- Ideal range
- Suggested change
Why Weight Matters
Carrying extra weight is one of the biggest controllable risks to a dog's health — studies have linked obesity to a shorter lifespan (up to about 2 years less), along with a higher risk of joint disease, diabetes and heart problems. Staying near the ideal weight is one of the simplest ways to help your dog live longer and more comfortably.
Ideal Weight Ranges by Size
| Size class | Ideal adult weight |
|---|---|
| Small | 6–20 lb |
| Medium | 21–50 lb |
| Large | 51–90 lb |
Body Condition Score (1–9)
Weight alone doesn't tell the whole story — body condition scoring (BCS) looks at how your dog actually feels and looks.
| Score | Category | What to look/feel for |
|---|---|---|
| 1–3 | Underweight | Ribs, spine and hip bones easily visible; little to no body fat; obvious waist and abdominal tuck. |
| 4–5 | Ideal | Ribs easily felt with a thin fat cover; visible waist behind the ribs when viewed from above. |
| 6–7 | Overweight | Ribs difficult to feel under fat cover; waist barely visible or absent; noticeable fat over the back. |
| 8–9 | Obese | Ribs not felt under a heavy fat cover; no waist; fat deposits on chest, spine and abdomen. |
These ranges are general estimates by size class, not breed-specific medical guidance. Ask your veterinarian for a target weight tailored to your dog's breed and build.
Frequently Asked Questions
How do I know if my dog is overweight?
You should be able to feel (not necessarily see) their ribs with light pressure, and see a visible waist from above. If ribs are hard to feel and the waist has disappeared, your dog is likely overweight — a body condition score check with your vet can confirm it.
What is the ideal weight for my breed?
Ideal weight varies a lot by breed within each size class. Use our size-based range as a starting point, but ask your vet for a breed-specific target, especially for breeds with a stocky or lean build.
How many calories should my dog eat?
It depends on weight, age, activity level and whether they're spayed/neutered — as a rough starting point, an average adult dog needs about 25–30 calories per pound of body weight per day, but your vet or food label is the best source.