How Much to Feed a Kitten: Calories and Meals by Age
Daily calories, cups and meals per day, from weaning to the first birthday.
By the PawReckon team Β· Published
For its size, a growing kitten needs about twice the calories it will need as a neutered adult: a growth multiplier of Γ2.5 against Γ1.2. That is the whole reason kitten food exists, and it is why kittens are fed small meals often: a stomach the size of a walnut cannot hold a day's energy in one or two sittings.
This guide covers how much to feed at each age, how many meals, and when the numbers change. The calorie figures come from the same formula as the pet calorie calculator, and the adult side is covered in how many calories a cat needs a day.
The calorie math for kittens
Start with the resting energy requirement, 70 Γ (body weight in kg)0.75, then multiply by a growth factor. The calculator uses Γ2.5 for kittens. For comparison, a neutered adult is Γ1.2 and an intact adult Γ1.4. A 9 lb kitten near the end of growth would get 503 kcal on the kitten factor, against 281 as an intact adult and 241 once neutered.
Because kittens grow fast, their weight is the number that changes, not the factor. A healthy kitten gains roughly a pound a month for its first five or six months, so a feeding plan written for an 8-week-old is out of date within a few weeks. Weigh the kitten every week on a kitchen or baby scale and recalculate.
How much to feed a kitten by age
Typical weights by age, with calories at Γ2.5. Cups assume a 500 kcal/cup dry kitten food; cans assume a 3 oz can at 85 kcal. Use your own kitten's weight and your food's label for the real figure.
| Age | Typical weight | kcal/day | Meals | kcal/meal | Dry cups/day | 3 oz cans/day |
|---|---|---|---|---|---|---|
| 8 weeks | 2 lb | 163 | 4 | 41 | 0.33 | 1.9 |
| 12 weeks | 3 lb | 220 | 4 | 55 | 0.44 | 2.6 |
| 16 weeks | 4 lb | 274 | 3 | 91 | 0.55 | 3.2 |
| 20 weeks | 5 lb | 323 | 3 | 108 | 0.65 | 3.8 |
| 24 weeks | 6 lb | 371 | 3 | 124 | 0.74 | 4.4 |
Two things stand out. Calories roughly double between 8 weeks and 6 months, and the per-meal amount grows faster than the daily total, because meals drop from four to three. The first number surprises most people in the other direction: an 8-week-old needs only about 0.33 cups of kibble a day, a little over a tablespoon per meal.
The Γ2.5 factor fits the fast-growth months best. Growth slows after about six months, and many vets step the factor down toward Γ2.0 through the second half of the first year. On that basis a 6 lb kitten at 7 or 8 months would get about 297 kcal rather than 371. Let body condition decide: if the kitten is getting a noticeable belly, taper.
General estimate, not veterinary advice
This is a general starting estimate, not a substitute for veterinary guidance. Your pet's real needs depend on their health, body condition and individual metabolism. Confirm the amount with your veterinarian.
MER factors follow standard veterinary-nutrition guidance (WSAVA global nutrition guidelines; Ohio State University Veterinary Medical Center calorie framework). RER = 70 Γ (body weight in kg)^0.75.
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How often kittens should eat
| Age | What they eat | How often |
|---|---|---|
| 0 to 2 weeks | Mother's milk or kitten milk replacer | Every 2 to 3 hours, day and night |
| 2 to 4 weeks | Milk or replacer | Every 3 to 4 hours |
| 4 to 6 weeks | Weaning: wet kitten food mashed with replacer | 4 to 6 small meals |
| 6 to 12 weeks | Wet and dry kitten food | 4 meals |
| 3 to 6 months | Kitten food | 3 meals |
| 6 to 12 months | Kitten food, tapering | 2 to 3 meals |
Most kittens go to a new home at 8 to 12 weeks, so the four-meals row is where most owners start. Breakfast, lunch, an early evening meal and one before bed is a schedule that works around a working day, and it is fine for a kitten to have access to a measured portion of dry food through the middle of the day if nobody is home.
Orphaned or bottle-fed kittens are a different job. They need a commercial kitten milk replacer, never cow's milk, warmed to body temperature and fed belly-down rather than on their back. Neonatal care is outside the scope of this page and worth a call to your vet or a local rescue, many of which run foster programs for exactly this.
Choosing a kitten food
Look for a nutritional adequacy statement on the label that says the food is complete and balanced for growth, or for all life stages. That statement matters more than the brand. Kitten foods carry more protein, fat and calcium than adult foods, and an adult maintenance food will not support growth properly.
Wet, dry or a mix all work. Wet food is easier for young kittens to eat and adds water to the diet. Dry food is convenient and cheaper. Many owners feed wet food at two meals and dry at the others. If you mix, divide the day's calories between them rather than giving a full portion of each, which is the easiest way to overfeed.
Fresh water should always be available. Kittens often drink little, which is one more argument for including some wet food.
When the numbers change
- Spay or neuter. Energy needs fall by roughly a quarter after surgery, while appetite often goes up. This is the single biggest cause of weight gain in young cats. Review the portion at the post-op check rather than carrying on with the kitten amount.
- Around 12 months. Most cats switch to adult food and the Γ1.2 neutered-adult factor. The adult guide has the full adult calorie table.
- Large breeds. A Maine Coon or Ragdoll keeps growing for three to four years and is often kept on growth food longer. Their adult weights run much higher than a domestic shorthair's, so do not compare them against a generic growth chart.
- Illness. A kitten that skips more than a meal or two, has diarrhea, or stops gaining weight needs a vet quickly. Small bodies dehydrate fast.
Is my kitten eating the right amount?
The scale is the best tool you have. Steady weekly gain of around 100 g, a kitten that plays hard and then sleeps hard, and a body you can feel ribs on without seeing them all point to the right amount. A round, tight belly after meals is normal in young kittens. A kitten that is always frantic for food despite gaining well may simply be a kitten; one that is frantic and not gaining should be checked for parasites.
For your own kitten's number, enter its current weight in the calorie calculator, pick Cat and the kitten life stage, and use the kcal from your food's label. The cat age calculator shows what your kitten's age means in human years, which is a useful reminder that a 6-month-old cat is roughly a young teenager. If this is your first cat, the litter box guide is worth reading before the kitten comes home.
More for new cat owners
- How many calories does a cat need?The adult calorie table, wet and dry
- Cat age calculatorYour cat's age in human years
- How many litter boxes you needThe n+1 rule, and where to put them
- Pet calorie calculatorDaily calories and cups for cats and dogs
Frequently asked questions
How much should a kitten eat a day?
Roughly 163 kcal a day at 8 weeks and 2 lb, rising to about 371 kcal at 6 months and 6 lb. That is the resting energy requirement multiplied by 2.5 for growth. In food terms, an 8-week-old eats about 0.33 cups of a 500 kcal/cup dry kitten food, or about 1.9 small cans of wet food, split into 4 meals.
How often should kittens eat?
Newborns nurse or take a bottle every 2 to 3 hours around the clock. From weaning at 4 to 6 weeks, offer 4 to 6 small meals; from 6 to 12 weeks, 4 meals a day; from 3 to 6 months, 3 meals; and from 6 months on, 2 or 3.
Can kittens drink cow's milk?
No. Most cats lose the ability to digest lactose after weaning, and cow's milk commonly causes diarrhea, which is dangerous in a small kitten. Orphaned kittens need a commercial kitten milk replacer. Weaned kittens need only fresh water.
When should a kitten switch to adult food?
Around 12 months for most cats. Large, slow-maturing breeds such as the Maine Coon are often kept on kitten or growth food longer, commonly to 18 months; ask your vet. If your kitten is neutered early, its calorie needs drop, so portions should be reviewed at that point even before the food changes.
Can I free-feed a kitten?
Many young kittens handle free-fed dry food well because they are growing fast. The habit is harder to break later, and free-feeding is a common route to an overweight adult. Measured meals from the start make the switch to adult portions easier.
How much weight should a kitten gain?
Roughly 1 lb a month for the first five or six months, which is about 100 g a week. A kitten that stops gaining for more than a few days, or loses weight, should see a vet.
Keep going with the same pet
Weigh your kitten weekly and rerun the calculator: the number changes fast.
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