Indoor Cat Weight Check: How to Do It at Home
Indoor cats move less than outdoor cats, and weight can creep up unseen. Cats also have fur and a loose belly pad, so it is hard to judge by eye. A quick home check helps you notice changes sooner.
Why weight is worth watching
Extra weight is commonly discussed as an issue in indoor cats, and vets often raise it. On the other hand, unplanned weight loss can be a sign that something is wrong. Both directions are worth noticing.
Small numbers matter. A cat weighing 4 kg who gains 400 g has gained about ten per cent of her body weight. In human terms that would be a lot.
Step 1: weigh your cat
Options:
- Baby scales or pet scales. Accurate at small weights.
- Bathroom scales. Weigh yourself, then yourself holding your cat in a carrier or arms, and subtract. Use the same method each time.
- At the vet. Many clinics let you drop in to weigh a cat, often free or low cost. Ask.
Weigh at a similar time, for example before breakfast. Write down the date and number.
Step 2: look at body shape
Weight alone is not enough, because cats vary in frame. Body condition scoring uses touch and sight. Vets commonly use a scale from one to nine, where about four to five is considered ideal.
From above, a cat at a healthy weight usually has a visible waist behind the ribs. From the side, the belly line tucks up slightly behind the ribcage.
Step 3: feel the ribs
Run your hands gently along each side of the chest.
- You should be able to feel the ribs under a light layer of fat, like feeling the back of your hand.
- If you must press hard to find them, your cat may be carrying extra.
- If they feel sharp and obvious, she may be too thin.
Note that many cats have a loose flap of skin on the belly called a primordial pouch. This is normal and does not by itself mean overweight.
Step 4: record and compare
Keep a simple note on your phone. A monthly check is enough for most cats. Look at the trend, not a single weigh-in.
Tell your vet if your cat:
- Gains or loses weight steadily over a few weeks
- Loses weight without a change in food
- Eats much more or less than normal
- Drinks or urinates more
- Seems lethargic or has a change in litter habits
What can help at home
Always check with your vet first, especially for older cats or any with a health condition. Cats should not be put on rapid diets, because sudden restriction can be risky.
Practical steps owners often use:
- Measure meals with scales, not scoops
- Count snacks in the daily total
- Slow down eating with puzzle feeders or scatter feeding
- Add short play sessions with a wand toy
- Give vertical space, such as shelves or cat trees
- Avoid free feeding unless a vet agrees it suits your cat
Multi-cat homes
If several cats share a home, one may eat another’s food. Feed in separate rooms, or use microchip feeders. Watch each cat’s weight individually.
Common mistakes
- Judging by looks alone, since fur hides shape
- Treating a loose belly as proof of excess weight, or ignoring it altogether
- Cutting food sharply without advice
- Forgetting snacks and table scraps
- Assuming weight loss in an older cat is “just ageing”
What about supplements?
Products are sometimes marketed for weight or ageing. Speak to your vet first, and never give a cat a supplement made for dogs or people. Weight is mostly about measured food, movement and regular checks.
Put it in the diary
Pick a day each month. Weigh, feel the ribs, look from above and note it down. Five minutes is all it takes. If the number moves, bring your notes to the vet and decide on a plan together.
A word on kittens and young cats
Growing kittens gain weight quickly, and that is normal. This routine suits adult cats. For kittens, your vet will give growth guidance at vaccination visits.
What to do next
PAWER is for dogs today. It is not for cats, and we never suggest giving it to one. Ask your vet about anything you add to your cat’s routine.
- Join the waitlist for updates
- If you also have a dog, see PAWER for dogs
General information for pet owners. Not veterinary advice.