Tool For Pet

For Cat Owners

Cat Food Calculator

How much to feed your cat? Plug in weight, activity, and kcal per cup.

Illustration of a calm tabby cat next to a terracotta food bowl on a deep forest green background

Take a well-lit close-up of the Calorie Content or Feeding Information block on the back of the bag. We'll auto-fill kcal per cup.

Example — a label's Feeding Information or Calorie Content block. Fill the frame with this block and keep text in focus.Tap the photo to enlarge.
Example photo: a dog food Feeding Information table showing weight and cups per day.

Example — a label's Feeding Information or Calorie Content block. Fill the frame with this block and keep text in focus.

Your daily estimate

645kcal / day
1.61cups / day
0.81cups / meal

RER 495.95 kcal · factor ×1.3 · adjust over 2–4 weeks by body condition.

Tip

Indoor neutered cats often need less than the bag suggests. Start at the low-activity estimate and adjust over 2-4 weeks.

Cat-specific context

Why cat calorie plans need extra caution

Cats tolerate aggressive feeding changes poorly compared with most dogs. Indoor adults often need fewer calories than the package implies, while kittens, highly active cats, and outdoor cats can need more. If an overweight cat is cut too fast, hepatic lipidosis becomes a real risk, so the safest path is slow adjustment with regular weigh-ins.

Indoor vs outdoor life

Indoor cats usually sit near the low end of calorie needs, while outdoor roaming can raise the target meaningfully.

Wet and dry mixes

Use the calculator for the total daily calories first, then divide those calories across cans, pouches, and dry cups.

Safe weight loss

Cats should lose slowly. Rapid restriction is exactly why hepatic lipidosis is part of every serious feline weight-loss conversation.

Checkpoints

Cat feeding checkpoints

Re-check the number after sterilization, a move from kitten to adult food, or any major activity change. If your cat stops eating, vomits repeatedly, loses weight without trying, or has diabetes, kidney disease, or urinary disease, get veterinary guidance before making bigger calorie cuts.

Weekly weigh-ins

For weight loss, aim for roughly 0.5–1% of body weight per week, not crash dieting.

Meal frequency

Many cats handle smaller, predictable meals better than one big serving, especially when transitioning foods.

Water matters

If intake is low, shifting part of the calories into wet food can improve hydration while keeping the same total target.

FAQ

Frequently asked questions

  • How many calories does an indoor cat need?

    Most indoor neutered adult cats land around 180–240 kcal per day. Enter your cat's weight and activity above to get a specific estimate.

  • Should I feed wet or dry food?

    Either works, but wet food delivers more moisture and is usually better for urinary health. See the wet-vs-dry guide for a practical mix.

  • Is this right for a kitten?

    Yes. Use the Gain goal for actively growing kittens and feed more frequent small meals.

  • My cat is overweight. Is it safe to cut calories fast?

    No. Rapid weight loss in cats can cause hepatic lipidosis. Use Lose and aim for ~1% body weight per week, confirmed with your veterinarian.

Related

Shared calculator Allergy checker Wet vs dry cat food Body condition score