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
Orijen Puppy Large Breed Grain-Free is one of the more calorie-dense dry dog foods we track: at 451 kcal per cup it has more energy than 89% of the 140 dry dog foods in our list. You will pour less of it than you might expect.
To show how much the food matters: a 15 lb puppy needs about 590 kcal a day. That is 1 ¼ 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 120 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.
Orijen Puppy Large Breed Grain-Free 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 | ⅜ cup52 g | ¼ cup35 g |
| 5 lb 2.3 kg | ⅞ cup103 g | ⅝ cup69 g |
| 10 lb 4.5 kg | 1 ½ cups174 g | 1 cup116 g |
| 15 lb 6.8 kg | 2 cups235 g | 1 ¼ cups157 g |
| 20 lb 9.1 kg | 2 ⅜ cups292 g | 1 ⅝ cups195 g |
| 30 lb 13.6 kg | 3 ¼ cups396 g | 2 ¼ cups264 g |
| 40 lb 18.1 kg | 4 ⅛ cups491 g | 2 ¾ cups327 g |
| 50 lb 22.7 kg | 4 ⅞ cups580 g | 3 ¼ cups387 g |
| 60 lb 27.2 kg | 5 ½ cups665 g | 3 ¾ cups444 g |
Label values: 451 kcal per cup, 3,760 kcal per kg. Source: 1800petmeds.com, checked 18 Oct 2026.
Questions
How much Orijen Puppy Large Breed Grain-Free should I feed a 20 lb puppy?
About 1 ⅝ cups or 195 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 Orijen Puppy Large Breed Grain-Free?
The label states 451 kcal per cup, 3,760 kcal per kg (checked 18 Oct 2026). Recipes change, so check your bag.