How the cat feeding calculator works
The calculator first estimates your cat's daily calorie needs (using the same RER-based method as our calorie tool), then divides by the calorie density of the chosen food type. Densities differ a lot: dry food averages around 380 kcal per 100 g, while wet food is closer to 90 kcal per 100 g — which is why wet-fed cats eat a much larger weight of food.
It then splits the daily amount into a sensible number of meals and projects a weekly total to help with shopping.
How to use it
- Enter weight and unit. Add your cat's current weight in kg or lb.
- Choose life stage and food type. Select kitten, adult or senior, and whether you feed dry, wet or mixed.
- Calculate. See grams per day, meals per day, per-meal portions and a weekly estimate.
Key takeaways
- Daily food = calorie need ÷ the food's calorie density.
- Dry food ≈ 380 kcal/100 g; wet food ≈ 90 kcal/100 g.
- Two meals suit most adults; kittens need three to four.