How Much Should a Kitten Eat? Calorie Chart by Weight

How much should a kitten eat? More than you might expect for its size. A growing kitten needs about 2.5 times its resting energy, compared with about 1.2 times for a neutered adult cat, according to the Merck Veterinary Manual. In practice that means a 4 lb kitten eats about as many calories as an 11 lb neutered adult cat.

Below is a feeding chart by weight, how many meals to give at each age, and a worked example with our cat food calculator.

How many calories does a kitten need?

Vets estimate a kitten’s daily calories in two steps. First, resting energy (RER) = 70 × body weight in kg^0.75. Then multiply by 2.5 for a growing kitten. That is the formula our cat calorie calculator uses for kittens.

Kitten feeding chart by weight

Kitten weight	Calories a day	Wet food (90 kcal cans)	Dry food (400 kcal/cup)
1 lb (0.45 kg)	97 kcal	1.1 cans	¼ cup
2 lb (0.91 kg)	163 kcal	1.8 cans	a heaping ⅓ cup
3 lb (1.36 kg)	220 kcal	2.4 cans	½ cup
4 lb (1.81 kg)	274 kcal	3.0 cans	⅔ cup
5 lb (2.27 kg)	323 kcal	3.6 cans	a heaping ¾ cup
6 lb (2.72 kg)	371 kcal	4.1 cans	1 cup
7 lb (3.18 kg)	416 kcal	4.6 cans	1 cup
8 lb (3.63 kg)	460 kcal	5.1 cans	1⅛ cups

2.5 × RER (Merck). Cans assume a 3 oz can at 90 kcal and dry food at 400 kcal per cup, our calculator’s defaults. Use the numbers on your own food’s label: kitten foods range widely.

Two notes on reading the chart:

• Most kittens eat a mix. If you feed half wet and half dry, halve both columns. A 4 lb kitten on a 50/50 plan gets about 1½ cans and ⅓ cup of dry food.
• The factor is a starting point. Growth slows after about 6 months and most cats are near adult size by 10–12 months (VCA), so older, bigger kittens often need less than the top rows suggest. Let body shape guide you: a kitten should look lean with a visible waist.

How many times a day should a kitten eat?

Kittens have small stomachs and high energy needs, so they need several meals.

Age	Meals a day	Notes
8 weeks to 3 months	3–4 small meals	Just weaned; VCA notes weaning at about 8 weeks
3 to 6 months	3 meals	Cornell: three meals a day until 6 months
6 to 12 months	2 meals	Cornell: two meals a day from 6 months to a year
Over 12 months	1–2 meals (adult)	Switch to adult food at about a year (AAHA)

VCA recommends portion feeding: measured meals at set times rather than leaving food out all day. Measured meals tell you straight away if your kitten goes off its food, which matters in a small animal.

Worked example: a 4 lb kitten on wet and dry food

Say your kitten is 4 months old and weighs 4 lb. You feed half wet and half dry. In the cat food calculator, enter 4 lb, choose “Kitten (under 1 year)”, set 50% wet, 90 kcal per can, 400 kcal per cup and 3,800 kcal per kg of dry food.

The calculator returns:

• Daily calories: about 274 kcal (range about 247–301)
• Wet food: 137 kcal, about 1½ cans a day
• Dry food: 137 kcal, about ⅓ cup, or about 36 g
• Meals: 3–4

At 4 months, Cornell’s guidance is three meals, so you might give half a can at each meal and split the dry food across the day. Re-weigh every 1–2 weeks and re-run the numbers: at this age a kitten can gain half a pound or more in a fortnight.

How much should a kitten weigh?

There is no single target weight; it depends on breed, sex and age. Most cats reach adult size at 10 to 12 months, and adult weights at ideal condition range from about 6 to 13 lb depending on breed and sex. Our post on when cats stop growing has the full timeline, and how to tell how old a cat is helps if you don’t know your kitten’s age. To see your kitten’s age in human years, try the cat age calculator.

What should kittens eat?

Choose a food labeled as complete and balanced for growth or all life stages. AAFCO explains that these label claims mean the food meets the nutrient levels a growing animal needs; a food for “adult maintenance” does not. Kitten food is more energy-dense, so portions in cups look small. That’s expected.

Treats should stay small, no more than about 10% of daily calories. For a 4 lb kitten that is about 27 kcal.

When to call your vet

Kittens can go downhill quickly. Call your vet promptly if your kitten:

• skips more than one meal, or eats much less than usual
• has diarrhea or vomiting for more than a day, or any blood in either
• isn’t gaining weight week to week, or loses weight
• seems lethargic, cold or weak
• has a swollen belly with thin limbs (worms are common in young kittens)

A kitten under about 3 months that stops eating for even a day needs to be seen the same day. For adult cats, our post on how many calories a cat needs picks up where this one ends.