The Handy Pages
Calculators

Cat Food Calculator

How much should you feed your cat? Weight alone is a weak signal — body condition score matters more — but a starting portion from resting-energy math beats guessing from the scoop on the bag. This worked example uses a 10 lb neutered adult at roughly 400 kcal per cup (always check your bag; dry food commonly runs 300–500 kcal per cup).

Use the controls below to enter your cat's weight, life stage, and the calorie density printed on your food. Portions round down to the nearest 1/8 cup so you do not overfeed. Download a two-page PDF: feeding chart on page 1 and a 30-day log on page 2 for your fridge or pet sitter.

An estimate from standard formulas — your veterinarian's recommendation wins, especially for kittens, seniors, pregnancy, or any medical condition.

Cat Food Calculator

Daily energy: 261.1 kcal/day

RER: 217.6 kcal/day

5/8 cup (before round-down: 5/8 cup) per day

Unrounded MER: 261.1 kcal/day

MealAmountTime
Meal 11/4 cup
Meal 21/4 cup

Assumptions

  • Weight: 10 lb
  • Life stage: Neutered adult
  • Life-stage factor: 1.2
  • Calories per cup: 400 (typical range 300–500)

Portions round down to the nearest measuring increment.

An estimate from standard resting-energy formulas. Your vet's number wins, especially for puppies, seniors, pregnancy, and any medical condition.

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30-day feeding log (page 2)

30-Day Feeding LogDayMeal 1Meal 2Time123456789101112131415161718192021222324252627282930The Handy Pages · thehandypages.com

Kitten Feeding Chart

Kittens are fed to a growth curve, not a maintenance figure. This layout uses a 4 lb kitten with four small meals per day.

Controls on this page adjust weight as your kitten grows and set kcal per cup from your kitten formula bag.

Download includes a 30-day log with a checkbox per meal.

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Senior Cat Feeding Calculator

Senior cats often need fewer calories than adults at the same weight. This layout uses the senior factor for an 11 lb cat split across three meals.

Use controls on this page for weight changes and calorie density on a senior formula.

Portions always round down; unrounded kcal is printed for transparency.

Load this example in the calculator

Cat Weight Loss Feeding Calculator

Weight loss in cats is not the same problem as in dogs. The weight-loss factor triggers an explicit warning on screen and in the PDF.

This worked example uses a 14 lb cat on a vet-supervised plan framing. Do not start a restriction diet without professional guidance.

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Feed & house a pet