Updated 19 October 2026

Puppy feeding amount calculator

By VicayaGlobal Calculator Editorial Team

Work out how much to feed a puppy from age, current weight and the food label’s calories. This puppy food calculator shows daily calories, grams and measured portions per meal for healthy, fully weaned puppies that are still growing. It is a starting estimate to review with your vet.

Dog

702.2 kcal per day

Growth energy estimate; recheck weight, body condition and portion with your vet as your puppy grows.

Resting energy (F-PETS-GROW-001): 234.1 kcal =70×weightKg^0.75
Growth factor (F-PETS-GROW-002): RER × 3; under 4 months × 3, at/over 4 months × 2
Food after treats (F-PETS-GROW-003): 702.2 kcal/day
Daily food amount: 175.5 g/day from your label
Each measured meal: 43.9 g; 175.5 kcal

What this means

F-PETS-GROW-001/002: daily calories=70×kg^0.75×growth factor. The AAHA example factors are 3 before 4 months and 2 from 4 months while growing. Age alone cannot establish whether your dog is still growing.

F-PETS-GROW-003: remove the entered treat share, then grams/day=food calories×1000÷label kcal/kg. Divide the unrounded amount by your chosen meals. Food energy and grams are not interchangeable; there is no assumed cup size.

Choose a complete diet suitable for growth and expected adult size. A calorie estimate cannot verify calcium balance, assess a raw recipe or replace a vet plan. The puppy feeding chart below is a reference for its stated food energy, not a prescription.

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Puppy feeding chart by age and weight

Reference daily calories and grams at 4000 kcal/kg, zero treats. These are current puppy weights, not adult-weight predictions. Use your label above.

Puppy feeding chart by age and weight
Age	2 kg	5 kg	10 kg	20 kg
2 months	353.2 kcal / 88.3 g	702.2 kcal / 175.5 g	1180.9 kcal / 295.2 g	1986.1 kcal / 496.5 g
3 months	353.2 kcal / 88.3 g	702.2 kcal / 175.5 g	1180.9 kcal / 295.2 g	1986.1 kcal / 496.5 g
4 months	235.5 kcal / 58.9 g	468.1 kcal / 117 g	787.3 kcal / 196.8 g	1324 kcal / 331 g
6 months	235.5 kcal / 58.9 g	468.1 kcal / 117 g	787.3 kcal / 196.8 g	1324 kcal / 331 g
9 months	235.5 kcal / 58.9 g	468.1 kcal / 117 g	787.3 kcal / 196.8 g	1324 kcal / 331 g
12 months	235.5 kcal / 58.9 g	468.1 kcal / 117 g	787.3 kcal / 196.8 g	1324 kcal / 331 g

When to see a vet

Seek advice for poor growth, a puppy losing weight, persistent vomiting or diarrhoea, unusual thirst, weakness or refusal to eat.
Ask your vet to assess body condition and skeletal maturity before changing to adult feeding; do not restrict a growing puppy to an adult weight-loss plan.

Formula and sources

Sources reviewed 19 October 2026. Each names the figure it supports.

F-PETS-GROW-001/002: RER and puppy/kitten growth factors;4.5 kg worked RER example — AAHA 2021 Nutrition and Weight Management Guidelines, Box1
Growth food to individual skeletal maturity; large/giant breeds may mature later — AAHA 2021, Age-specific and Breed-specific Diets

This page is an educational estimate, not veterinary advice.

Frequently asked questions

How much should I feed my puppy?

Estimate growth calories from current weight and age, then use the complete food’s label to convert calories into grams. Reassess portions with body condition and growth; the result is a starting estimate.

Why does the puppy food calculator change at 4 months?

AAHA’s example growth factors change from 3 RER before 4 months to 2 RER from 4 months. Real needs vary and do not change abruptly on a birthday; adjust with veterinary guidance.

Can I use a puppy feeding chart for every food?

No. Calorie density differs between foods. The reference chart states 4000 kcal/kg and zero treats; use your actual label in the calculator for portions.

Can I use this for a newborn or an adult dog?

No. It is for healthy fully weaned puppies still growing. Newborns, pregnant or ill dogs and dogs at skeletal maturity need a different plan.