Cat Calorie Calculator

Your details

Your cat's current body weight. Use a consistent scale, ideally just before a meal.
kg
Choose the category that best matches your cat's reproductive status and activity level. Multipliers follow the 2021 AAHA Nutrition Guidelines.
Veterinary nutritionists recommend treats make up no more than 10% of daily calories. Tick this to split the budget between meals and treats.
How many feeding sessions per day. The daily meal budget is divided evenly.
MER (Daily Total)Typical calorie need
260kcal/day

Total daily calories accounting for life stage and activity level

RER (Resting Energy)216kcal/day
Calories per meal130kcal
Treat allowance0kcal/day
Dry food per day0.68cups
Wet food per day1.3cans
Life stage multiplier1.2
RER (rest)216
MER (total)260
Per meal130

Your cat needs about 260 kcal/day (Neutered/Spayed adult (normal activity)).

  • At 4.5 kg, the resting energy requirement is 216 kcal/day. The Neutered/Spayed adult (normal activity) multiplier (1.2x) brings the daily total to 260 kcal/day.
  • Across 2 meals that is about 130 kcal per feeding.
  • These are estimates based on average metabolic rates. Individual cats vary: body condition score, health status, and the caloric density of your specific food brand all affect the ideal serving size.

Next stepCross-check against the calorie count printed on your cat's food packaging, then adjust up or down based on body condition score over 2-4 weeks.

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