Dog food calculator (How many cups per day)


By using the dog food calculator below, you can determine exactly how many cups of food your dog will need per day.

Plus you can also determine how long a 15 lbs. bag of dog food will last.

Step 1) Calculate your dog’s ideal weight.

Step 2) Calculate how much your dog exercises.

Step 3) Add up the number of calories from your chosen brand or food.


What does this dog food calculator do?

  • Accurately displays how much to feed a dog per day in cups
  • Accurately displays how much you should feed your dog by their weight & activity level
  • Accurately displays how many days a 15 lbs. bag of dog food will last
  • Calculates the correct amount of food to feed your dog for weight loss
  • Calculates the correct amount of food to feed your dog for various activity levels

NOTE: This dog food calculator is designed for adult dogs only. For puppies, pregnant, and nursing dogs, please refer to the recommended feeding amounts that are printed on the bag of dog food.


Dog Food Calculator

Ideal weight (pounds)
Activity level
Food's calories per serving (kcal/cup)

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Kenneth Brown on Apr 22, 2024

? My puppy is 14 weeks, we live in an apartment. How much food should I feed him while h s growing

Vet on Feb 15, 2024

EVSmith – values entered into this calculator must be numerical. If other symbols are used, it will display ‘NaN’ (Not a Number).

Vet on Feb 15, 2024

0.61 cups is slightly less than 2/3 of a cup.

EVSmith on Feb 15, 2024

What is NaN mean, I gave you amounts you requsted

Karen Welborn on Jan 25, 2024

This is a great tool – information provided will help me to better manage my 3 dogs food needs & amount of food to purchase for each month – big help for someone on a limited fixed income with 3 furbabies of varying sizes, ages & needs. Thanks much!! 🙏👵💖