Pet Weight and Body Condition: Is Your Pet a Healthy Size?

At a healthy weight, you can feel your dog's or cat's ribs easily under a light layer of fat, see a waist from above and a tummy tuck from the side. Vets use a body condition score to judge this. Weigh your pet regularly, measure food, count treats, and make any weight-loss plan with your vet.

The Hands-On Check

Ribs: run your flat hands along the sides. You should feel the ribs easily, like the back of your hand, without pressing.
Waist: look down from above. You should see a waist behind the ribs.
Tummy: look from the side. The belly should tuck up behind the ribs rather than hang level or sag.

Fluffy coats hide a lot, so use your hands, not just your eyes. Breeds differ: a greyhound and a Labrador look very different at a healthy weight.

Body Condition Scores

Vets often record a body condition score, commonly on a 9-point scale where the middle is ideal, as used in charts published by the World Small Animal Veterinary Association (WSAVA). Ask your vet to score your pet and show you what "ideal" feels like, so you can check at home between visits.

Weighing at Home

Weigh cats, small dogs and small pets on digital kitchen or baby scales, and bigger dogs by weighing yourself holding the dog and subtracting your own weight, or on the vet's scales. Write the weight down monthly. Gradual change is easy to miss by eye, and a steady weight is reassuring.

Weight-Management Kit

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A digital scale tracks weight, a measuring cup or kitchen scale makes portions consistent, and slow feeders or puzzle feeders make meals last longer and burn a little energy. Any special weight-loss diet should be one your vet recommends.

Keeping Weight Healthy

Measure every meal rather than scooping by eye, and treat the label's feeding guide as a starting point.
Count treats, chews and table scraps in the daily total; many vets suggest treats should be a small share of daily calories.
Adjust after neutering and with age, when many pets need less food.
Add activity: walks and games for dogs, play sessions for cats.
Lose weight slowly, with a plan from your vet. Cats in particular must never be starved or put on a crash diet.

Weight-loss diets and any supplements or medicines: see your vet or a pet supply store with trained staff. A sudden gain or loss of weight is a reason to see your vet.

Frequently Asked Questions

What owners ask about weight.

How do I know if my pet is overweight?

If you struggle to feel the ribs, can't see a waist from above, or the belly hangs, your pet may be carrying extra weight. Ask your vet for a body condition score.

How fast should a pet lose weight?

Slowly and steadily, with a plan from your vet, who can set a target and check progress.

Do treats really make a difference?

Yes. Small treats add up, especially for small pets. Count them in the daily total, or use part of the daily food as treats.

My pet is losing weight without trying. Should I worry?

Unexplained weight loss needs a vet visit, so book an appointment rather than waiting.

How do I weigh a big dog at home?

Weigh yourself holding the dog, then on your own, and subtract. Or pop into your vet practice, where many let you use the scales.