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 Original Grain-Free High-Protein is one of the more calorie-dense dry dog foods we track: at 473 kcal per cup it has more energy than 96% 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 40 lb spayed or neutered dog needs about 985 kcal a day. That is 2 ⅛ cups of this food, but 1 ⅞ cups of Purina Pro Plan All Ages Sport Performance 30/20 Salmon & Rice and 3 ⅝ 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.
Orijen Original Grain-Free High-Protein feeding chart
Daily amounts for healthy adult dogs with no treats, from the label calories and the AAHA 2021 energy factors. Split the amount into meals.
| Weight | Couch dog | Spayed or neutered | Very active |
|---|---|---|---|
| 5 lb 2.3 kg | ⅜ cup39 g | ½ cup53 g | ½ cup66 g |
| 10 lb 4.5 kg | ½ cup66 g | ¾ cup88 g | ⅞ cup110 g |
| 15 lb 6.8 kg | ¾ cup90 g | 1 cup120 g | 1 ¼ cups150 g |
| 20 lb 9.1 kg | ⅞ cup111 g | 1 ¼ cups149 g | 1 ½ cups186 g |
| 30 lb 13.6 kg | 1 ¼ cups151 g | 1 ⅝ cups201 g | 2 ⅛ cups252 g |
| 40 lb 18.1 kg | 1 ½ cups187 g | 2 ⅛ cups250 g | 2 ⅝ cups312 g |
| 50 lb 22.7 kg | 1 ⅞ cups222 g | 2 ½ cups295 g | 3 ⅛ cups369 g |
| 60 lb 27.2 kg | 2 ⅛ cups254 g | 2 ⅞ cups339 g | 3 ½ cups423 g |
| 70 lb 31.8 kg | 2 ⅜ cups285 g | 3 ⅛ cups380 g | 4 cups475 g |
| 80 lb 36.3 kg | 2 ⅝ cups315 g | 3 ½ cups420 g | 4 ⅜ cups525 g |
| 90 lb 40.8 kg | 2 ⅞ cups344 g | 3 ⅞ cups459 g | 4 ¾ cups574 g |
| 100 lb 45.4 kg | 3 ⅛ cups373 g | 4 ⅛ cups497 g | 5 ⅛ cups621 g |
Label values: 473 kcal per cup, 3,940 kcal per kg. Source: 1800petmeds.com, checked 18 Oct 2026.
Questions
How much Orijen Original Grain-Free High-Protein should I feed a 50 lb dog?
About 2 ½ cups or 295 g a day for a spayed or neutered dog, before treats. That is 1,164 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 Original Grain-Free High-Protein?
The label states 473 kcal per cup, 3,940 kcal per kg (checked 18 Oct 2026). Recipes change, so check your bag.