PetsMarch 23, 2026

Pet Nutrition: How Much Should You Feed Your Dog or Cat?

Q: How much should I feed my dog per day?

The amount depends on your dog's weight, age, activity level, and the caloric density of their food. As a general rule, dogs consume 2 to 4 percent of their body weight in food per day. A 30-pound moderately active adult dog typically needs about 780 to 900 calories per day, which translates to roughly 1.5 to 2 cups of standard dry food. However, feeding guidelines on the packaging are starting points. Monitor your dog's body condition (you should be able to feel ribs without pressing hard) and adjust portions up or down accordingly. Your veterinarian can provide the most accurate recommendation.

Q: How often should I feed my dog?

Most adult dogs should be fed twice a day, roughly 12 hours apart (for example, 7 AM and 7 PM). Puppies under 6 months need three to four meals per day due to their higher metabolism and smaller stomachs. Puppies aged 6 to 12 months can transition to twice daily. Some toy breeds may also benefit from three meals daily to avoid hypoglycemia. Free-feeding (leaving food out all day) is not recommended for most dogs because it makes it difficult to monitor intake and contributes to obesity.

Q: How much should I feed my cat per day?

An average indoor adult cat weighing 10 pounds needs approximately 200 to 250 calories per day, which equals about one-third to one-half cup of dry food or one 5.5-ounce can of wet food. Cats are obligate carnivores and require a higher protein diet than dogs. Many veterinarians recommend a combination of wet and dry food. Indoor cats are particularly prone to obesity (60 percent of cats are overweight or obese according to the Association for Pet Obesity Prevention), so measured portions are essential. Kittens need roughly twice the calories per pound of body weight as adults.

Q: How do I know if my pet is overweight?

For dogs, perform the rib test: place your hands on their sides and feel for the ribs. You should be able to feel individual ribs without pressing hard. If you cannot feel ribs at all, your dog is likely overweight. From above, your dog should have a visible waist (indentation behind the ribs). From the side, the belly should tuck up behind the rib cage. For cats, similar principles apply: you should be able to feel ribs easily, and there should be a visible waist when viewed from above. The Association for Pet Obesity Prevention estimates that 59 percent of dogs and 61 percent of cats in the US are overweight or obese.

Q: Should I feed my pet wet food or dry food?

Both wet and dry food can provide complete nutrition if they meet AAFCO (Association of American Feed Control Officials) standards. Wet food has advantages: higher moisture content (helps with hydration), higher protein per calorie, and greater palatability. Dry food has advantages: lower cost per calorie, better for dental health (the kibble texture helps reduce plaque), and more convenient for measured feeding. Many veterinarians recommend a combination. For cats specifically, wet food is often preferred because cats are prone to chronic dehydration. Regardless of format, look for AAFCO-compliant food with a named protein (chicken, beef, salmon) as the first ingredient.

By The hakaru Team·Last updated March 2026

Pet nutritioninvolves providing the right amount of food to maintain your dog or cat at a healthy weight and energy level. The correct portion size depends on your pet's weight, age, breed, and activity level. The Association for Pet Obesity Prevention reports that 59 percent of dogs and 61 percent of cats in the US are overweight or obese, making proper portioning one of the most important aspects of pet care.

Quick Answer

1. Dogs need 2-4% of their body weight in food daily. A 30-lb dog: roughly 1.5-2 cups of standard kibble.
2. Cats need 200-250 calories/day (10-lb indoor cat): about 1/3 to 1/2 cup dry food or one 5.5-oz can wet food.
3. 59% of dogs and 61% of cats are overweight or obese (APOP). Treats should be <10% of daily calories.
4. US pet food market: $60.4 billion in 2025. Dog food: $40.9B, cat food: $18.1B (APPA).

Calculate your pet's daily food needs

Enter your pet's weight, age, and activity level to get personalized feeding recommendations.

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How to Calculate Your Dog's Daily Food Needs

A dog's daily calorie requirement is based on their Resting Energy Requirement (RER) multiplied by a lifestyle factor. The formula used by most veterinary nutritionists:

RER = 70 x (body weight in kg)^0.75

Then multiply RER by the appropriate factor:

Neutered adult, normal activity: RER x 1.6
Intact adult, normal activity: RER x 1.8
Light activity / weight loss: RER x 1.2 to 1.4
Moderate activity / working dogs: RER x 2.0 to 3.0
Puppy (under 4 months): RER x 3.0
Puppy (4-12 months): RER x 2.0

Dog Feeding Chart by Weight

Dog Weight	Daily Calories	Approx. Cups/Day (Standard Kibble)
10 lbs (4.5 kg)	340-400	3/4 - 1 cup
20 lbs (9 kg)	540-640	1 - 1.5 cups
30 lbs (14 kg)	720-860	1.5 - 2 cups
50 lbs (23 kg)	1,050-1,250	2 - 2.75 cups
70 lbs (32 kg)	1,350-1,600	2.75 - 3.5 cups
90 lbs (41 kg)	1,600-1,900	3.25 - 4 cups

These ranges assume a moderately active neutered adult dog and standard kibble at approximately 350 to 400 calories per cup. Always check the calorie content of your specific food and adjust accordingly. Dog owners spend an average of $442 per year on food per APPA data, which translates to roughly $37 per month.

How to Calculate Your Cat's Daily Food Needs

Cats have different nutritional requirements than dogs. As obligate carnivores, they require higher levels of protein and certain amino acids like taurine. The calorie calculation follows the same RER formula:

RER = 70 x (body weight in kg)^0.75

Then multiply by the lifestyle factor:

Neutered indoor cat: RER x 1.2 to 1.4
Intact cat: RER x 1.4 to 1.6
Active outdoor cat: RER x 1.6 to 2.0
Weight loss: RER x 0.8 to 1.0
Kitten (under 12 months): RER x 2.5

Cat Feeding Chart by Weight

Cat Weight	Daily Calories (Indoor)	Dry Food (cups)	Wet Food (5.5 oz cans)
6 lbs (2.7 kg)	150-180	1/4 - 1/3	~1 can
8 lbs (3.6 kg)	180-220	1/3	~1 can
10 lbs (4.5 kg)	200-250	1/3 - 1/2	1 - 1.5 cans
12 lbs (5.4 kg)	230-280	~1/2	1.5 cans
15 lbs (6.8 kg)	270-330	1/2 - 2/3	1.5 - 2 cans

Cat owners spend an average of $329 per year on cat food. Many veterinarians recommend a combination of wet and dry food, as wet food provides critical hydration (cats are notoriously poor water drinkers) and dry food supports dental health.

The Pet Obesity Epidemic: Why Portions Matter

Pet obesity is one of the most significant health problems facing companion animals. According to the Association for Pet Obesity Prevention (APOP), 59 percent of dogs and 61 percent of cats in the United States are classified as overweight or obese. This translates to roughly 56 million overweight dogs and 60 million overweight cats.

Obesity in pets leads to the same complications as in humans:

Joint disease and arthritis: Excess weight puts strain on joints, accelerating degenerative joint disease. This is particularly problematic in large breed dogs.
Diabetes: Overweight cats are 4 times more likely to develop diabetes mellitus than healthy-weight cats.
Reduced lifespan: Overweight dogs live an average of 2.5 years less than dogs at a healthy weight, according to a Purina lifespan study.
Respiratory problems: Excess weight compresses the chest, making breathing more difficult, particularly in brachycephalic breeds (pugs, bulldogs).
Urinary disease: Overweight cats are significantly more prone to urinary tract disease.

Feeding Puppies and Kittens

Puppy Feeding Schedule

Puppies have higher caloric needs per pound of body weight than adult dogs because they are growing rapidly. A puppy's calorie needs are roughly 2 to 3 times an adult dog's per pound.

6 to 12 weeks: 4 meals per day. Use puppy-specific food formulated for growth.
3 to 6 months: 3 meals per day. Gradually increase portion sizes as the puppy grows.
6 to 12 months: 2 meals per day. Transition to adult food between 9 and 12 months for small breeds, 12 to 18 months for large breeds.
Large breed puppies: Require specialized large-breed puppy food with controlled calcium and phosphorus to support proper bone development and avoid growth disorders.

Kitten Feeding Schedule

Kittens need approximately twice the calories per pound of body weight compared to adult cats. Feed kitten-specific food (higher protein and fat content) until 12 months of age:

6 to 12 weeks: 4 meals per day, offering as much as the kitten will eat in 15 to 20 minutes.
3 to 6 months: 3 meals per day.
6 to 12 months: 2 meals per day. Transition to adult food at 12 months.

The 10 Percent Treat Rule

Treats should make up no more than 10 percent of your pet's daily calorie intake. For a dog eating 1,000 calories per day, that means no more than 100 calories in treats. A single milk bone biscuit contains 40 to 125 calories depending on size, and a tablespoon of peanut butter has about 95 calories. These add up quickly and are a major contributor to weight gain.

When using treats for training, choose low-calorie options (small pieces of cooked chicken, carrots, or commercial training treats at 3 to 5 calories each) and reduce meal portions to compensate.

Reading Pet Food Labels

Understanding pet food labels helps you choose quality food and calculate proper portions:

AAFCO statement: Look for the statement that the food is "complete and balanced" for the appropriate life stage. This means it meets minimum nutritional standards.
Calorie content: Listed as kcal per cup or per can. This is essential for calculating how much to feed.
Ingredient list: Ingredients are listed by weight (pre-cooking). Look for a named protein (chicken, beef, salmon) as the first ingredient rather than "meat by-products" or "animal meal."
Guaranteed analysis: Shows minimum protein, minimum fat, maximum fiber, and maximum moisture percentages.

The Bottom Line

Proper feeding is the foundation of pet health. Dogs typically need 2 to 4 percent of their body weight in food daily, while cats need 200 to 250 calories per day for a typical 10-pound indoor cat. With 59 percent of dogs and 61 percent of cats in the US classified as overweight, measured portions and limited treats are essential. Use the feeding guidelines on your food's packaging as a starting point, monitor your pet's body condition regularly, and consult your veterinarian for personalized recommendations.

Calculate your pet's exact daily food needs with our free pet food calculator.

Frequently Asked Questions

How much should I feed my dog per day?

The amount depends on your dog's weight, age, activity level, and the caloric density of their food. As a general rule, dogs consume 2 to 4 percent of their body weight in food per day. A 30-pound moderately active adult dog typically needs about 780 to 900 calories per day, which translates to roughly 1.5 to 2 cups of standard dry food. However, feeding guidelines on the packaging are starting points. Monitor your dog's body condition (you should be able to feel ribs without pressing hard) and adjust portions up or down accordingly. Your veterinarian can provide the most accurate recommendation.

How often should I feed my dog?

Most adult dogs should be fed twice a day, roughly 12 hours apart (for example, 7 AM and 7 PM). Puppies under 6 months need three to four meals per day due to their higher metabolism and smaller stomachs. Puppies aged 6 to 12 months can transition to twice daily. Some toy breeds may also benefit from three meals daily to avoid hypoglycemia. Free-feeding (leaving food out all day) is not recommended for most dogs because it makes it difficult to monitor intake and contributes to obesity.

How much should I feed my cat per day?

An average indoor adult cat weighing 10 pounds needs approximately 200 to 250 calories per day, which equals about one-third to one-half cup of dry food or one 5.5-ounce can of wet food. Cats are obligate carnivores and require a higher protein diet than dogs. Many veterinarians recommend a combination of wet and dry food. Indoor cats are particularly prone to obesity (60 percent of cats are overweight or obese according to the Association for Pet Obesity Prevention), so measured portions are essential. Kittens need roughly twice the calories per pound of body weight as adults.

How do I know if my pet is overweight?

For dogs, perform the rib test: place your hands on their sides and feel for the ribs. You should be able to feel individual ribs without pressing hard. If you cannot feel ribs at all, your dog is likely overweight. From above, your dog should have a visible waist (indentation behind the ribs). From the side, the belly should tuck up behind the rib cage. For cats, similar principles apply: you should be able to feel ribs easily, and there should be a visible waist when viewed from above. The Association for Pet Obesity Prevention estimates that 59 percent of dogs and 61 percent of cats in the US are overweight or obese.

Should I feed my pet wet food or dry food?

Both wet and dry food can provide complete nutrition if they meet AAFCO (Association of American Feed Control Officials) standards. Wet food has advantages: higher moisture content (helps with hydration), higher protein per calorie, and greater palatability. Dry food has advantages: lower cost per calorie, better for dental health (the kibble texture helps reduce plaque), and more convenient for measured feeding. Many veterinarians recommend a combination. For cats specifically, wet food is often preferred because cats are prone to chronic dehydration. Regardless of format, look for AAFCO-compliant food with a named protein (chicken, beef, salmon) as the first ingredient.

Calculate your pet's daily food needs

Enter your pet's species, weight, age, and activity level for personalized calorie and portion recommendations.

Pet Food Calculator - Free