Everyday care, costs and behaviour — from cat years and daily food portions to litter maths, vet budgets, kitten care schedules and cat-proofing your home. Type your cat question and get a straight, practical answer in seconds. The full detailed report costs less than a cup of coffee: $2.95.
Feeding 'a cup a day' or 'whatever the packet says' is how cats drift quietly overweight, because portion needs depend on the individual cat: its real weight, its age and how active it actually is. This calculator uses the standard veterinary resting-energy formula (about 70 × weight in kg to the 0.75 power) and multiplies it by an honest lifestyle factor — roughly 1.2 for a typical neutered indoor cat, up to about 1.6 for a busy outdoor cat, and double for growing kittens. You get a daily calorie target plus realistic gram amounts for wet food (about 1 kcal per gram) and dry food (about 3.5-4 kcal per gram). Every cat is different, so treat the number as a starting point, weigh monthly, and let the scale settle the argument.
Work out a sensible daily calorie target and portion size for your cat — from weight, age and how active they really are — with honest wet and dry food ranges.
A typical neutered indoor cat needs roughly 1.2 times its resting energy — for a 4 kg cat that lands around 230-250 kcal a day. Activity, age and body condition all move the number, which is why weighing monthly beats guessing from the packet.
Most wet foods sit near 1 kcal per gram, so a 240 kcal daily target is roughly 240 g of wet food. Real foods vary, so check the kcal figure on the tin and split the total into at least two meals.
Dry food is energy-dense at about 3.5-4 kcal per gram, so the same 240 kcal target is only about 60-70 g of kibble a day. That is why a 'cup' of dry food and a 'tin' of wet food are not interchangeable portions.
Every tool answers instantly from our own knowledge and calculators — no AI wait, no account. Honest estimates built on widely used feeding formulas, cost maths and veterinary guidance, always warm and practical — educational only, never a substitute for a visit to your veterinarian. Every cat is different, and if yours seems unwell, see your vet. Want the deeper, personalised version? Each has a $2.95 full report.