The maths, with your numbers
No guesswork and no brand chart. This is the same calculation a vet does on paper, so you can check it.
What this means for the bowl
Hill's Science Diet Puppy Large Breed Chicken & Brown Rice Recipe sits in the middle of the 140 dry dog foods we track, at 391 kcal per cup.
To show how much the food matters: a 15 lb puppy needs about 590 kcal a day. That is 1 ½ cups of this food, but 1 ⅛ cups of Purina Pro Plan All Ages Sport Performance 30/20 Salmon & Rice and 2 ⅛ cups of Kirkland Signature Healthy Weight Chicken and Vegetable. Same dog, same day, very different scoops.
A level 8 oz measuring cup holds about 108 g of this kibble. If you have kitchen scales, weighing is more accurate than scooping, because a heaped cup holds noticeably more than a level one.
This food is made for puppies that will be big dogs. Large breeds should grow at a steady pace, so keep your puppy lean. Puppies need about three times their resting energy until 4 months, then about twice. Weigh weekly, because the portion changes as they grow.
Hill's Science Diet Puppy Large Breed Chicken & Brown Rice Recipe feeding chart
Daily amounts for growing puppys with no treats, from the label calories and the AAHA 2021 energy factors. Split the amount into meals.
| Weight | Under 4 months | 4 months and older |
|---|---|---|
| 2 lb 0.9 kg | ½ cup54 g | ⅜ cup36 g |
| 5 lb 2.3 kg | 1 cup107 g | ⅝ cup71 g |
| 10 lb 4.5 kg | 1 ⅝ cups180 g | 1 ⅛ cups120 g |
| 15 lb 6.8 kg | 2 ¼ cups244 g | 1 ½ cups163 g |
| 20 lb 9.1 kg | 2 ¾ cups303 g | 1 ⅞ cups202 g |
| 30 lb 13.6 kg | 3 ¾ cups410 g | 2 ½ cups273 g |
| 40 lb 18.1 kg | 4 ¾ cups509 g | 3 ⅛ cups339 g |
| 50 lb 22.7 kg | 5 ⅝ cups602 g | 3 ¾ cups401 g |
| 60 lb 27.2 kg | 6 ⅜ cups690 g | 4 ¼ cups460 g |
Label values: 391 kcal per cup, 3,628 kcal per kg. Source: hillspet.com, checked 18 Oct 2026.
Questions
How much Hill's Science Diet Puppy Large Breed Chicken & Brown Rice Recipe should I feed a 20 lb puppy?
About 1 ⅞ cups or 202 g a day for a puppy aged 4 months or more, before treats. That is 732 kcal a day divided by the food’s label value. Use the calculator above to adjust for your pet.
How many calories are in Hill's Science Diet Puppy Large Breed Chicken & Brown Rice Recipe?
The label states 391 kcal per cup, 3,628 kcal per kg (checked 18 Oct 2026). Recipes change, so check your bag.
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- Science Diet Puppy Chicken & Brown Rice Recipe
- Science Diet Adult Perfect Weight Chicken & Brown Rice Recipe
- Science Diet Adult Sensitive Stomach & Skin Large Breed Chicken & Barley Recipe
- Science Diet Adult 7+ Chicken Meal, Barley & Rice Recipe
- Science Diet Puppy Small Bites Chicken & Brown Rice Recipe
- Science Diet Adult Sensitive Stomach & Skin Small Bites Chicken & Barley Recipe
- Science Diet Adult Small & Mini Chicken & Brown Rice Recipe (formerly Small Paws)