Pet Food Portion Calculator

Use an RER-based reference to calculate daily kcal and grams of food.

Reference only. Breed, body condition, illness, and neuter status can change needs; follow your veterinarian and food label first.

Weight (kg) Life stage Activity Food calories (kcal/100g)

GUIDE

How to use it

Estimate daily food from weight, life stage, activity, and food calories.

Results are for everyday care planning. Symptoms, disease concerns, and treatment decisions require a veterinarian.

Can I change care based only on this result?

No. Check the food label, body condition, usual intake, and veterinary advice together.

Is data saved?

No. This first-slice calculator only computes in the browser.