Dog & cat kibble ration calculator
Calculate your dog or cat’s daily kibble portion based on weight, age, neutering, activity, body condition and mix-feeding. Free estimate, no sign-up.
1. Pet's profile
Growth rate adjusts monthly until adulthood (12 months for cats, up to 24 months for large dogs).
2. Kibble specifications
Synchronised inputs. Changing one updates the other (standard reference: 3800 kcal/kg, i.e. 380 kcal/100g).
3. Mix-Feeding option (Wet + Dry)
Input how many wet-food pouches or cans you feed per day. We automatically compute the exact dry-kibble amount to add to balance the ration.
In number of pouches of
Usually printed on the back of the pouch per 100g (e.g. 85 kcal per 100g = 850 kcal/kg).
Estimate for guidance only
This calculator provides an estimate based on FEDIAF nutritional guidelines. It does not replace a veterinarian, who alone can adjust the ration in case of illness, pregnancy or special needs.
Good to know :
This answer helps you understand a topic or make an estimate, but it is not a substitute for professional advice. For any important decision regarding your health, finances, rights, safety or administrative procedures, please consult an official source or a qualified specialist.
Go deeper
Understanding your pet’s kibble portion
The right amount of kibble rarely depends on one number alone. Weight matters, but age, neutering, activity, body condition and the food’s energy value can significantly change the result. This calculator estimates your dog’s or cat’s daily energy need, then converts it into grams of kibble per day.
The goal is simple: get a practical portion for a healthy pet, avoid rough guesses and better understand how kibble choice affects your monthly budget.
An estimate adapted to your pet’s profile
A puppy, kitten, neutered adult, senior pet or very active companion does not have the same needs. The calculator adjusts the portion according to life stage, body condition and activity level. You can also enter the energy value shown on the pack, in kcal/kg or kcal/100 g.
The result remains a practical estimate. It should be adjusted with real observation: stable weight, appetite, general condition, stool quality, activity level and veterinary advice when needed.
Kibble only or mix-feeding
If you also feed wet food, the calculator can subtract the energy provided by wet food and recalculate the kibble amount to add. This helps avoid combining two full portions without noticing it.
Mix-feeding can help some pets improve hydration, especially cats, but it still needs to stay balanced. If wet food already covers most of the daily calories, the kibble portion should be reduced.
The result is a guidance estimate. In case of illness, pregnancy, lactation, major weight loss or weight gain, ask your veterinarian for advice.
FAQ
Which energy value should I enter in the calculator?
Enter the value shown on the kibble pack. It may be expressed in kcal/kg or kcal/100 g. If the label shows 380 kcal per 100 g, that equals 3800 kcal/kg.
Should I use my pet’s current weight or ideal weight?
For a pet with stable weight, use the current weight. In case of visible overweight or underweight, the result should be interpreted carefully. A veterinarian can help define a realistic target weight.
Why does the portion change after neutering?
After neutering, energy needs may decrease in many dogs and cats. Keeping the same portion can encourage weight gain. The calculator adjusts the estimate according to neutering status.
Can I mix kibble and wet food on the same day?
Yes. The key is to count the energy provided by both foods. If you add wet food without reducing kibble, the total ration can quickly become too high in calories.
How do I switch kibble safely?
Make a gradual transition over about 7 days: 75% old kibble / 25% new, then 50/50, then 25/75, before switching fully to the new food. Slow down if your pet has digestive issues.
Does this calculator replace a veterinarian?
No. It provides an estimate for a healthy dog or cat. In case of illness, pregnancy, lactation, medical diet or major weight variation, only a veterinarian can precisely adapt the ration.
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