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
Royal Canin Medium Puppy is one of the more calorie-dense dry dog foods we track: at 410 kcal per cup it has more energy than 73% 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 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 106 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.
Puppies need about three times their resting energy until 4 months, then about twice. Weigh weekly, because the portion changes as they grow.
Royal Canin Medium Puppy 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 cup50 g | ⅜ cup34 g |
| 5 lb 2.3 kg | 1 cup100 g | ⅝ cup67 g |
| 10 lb 4.5 kg | 1 ⅝ cups169 g | 1 cups112 g |
| 15 lb 6.8 kg | 2 ⅛ cups229 g | 1 ½ cups152 g |
| 20 lb 9.1 kg | 2 ⅝ cups284 g | 1 ¾ cups189 g |
| 30 lb 13.6 kg | 3 ⅝ cups385 g | 2 ⅜ cups256 g |
| 40 lb 18.1 kg | 4 ½ cups477 g | 3 cups318 g |
| 50 lb 22.7 kg | 5 ⅜ cups564 g | 3 ½ cups376 g |
| 60 lb 27.2 kg | 6 ⅛ cups647 g | 4 ⅛ cups431 g |
Label values: 410 kcal per cup, 3,869 kcal per kg. Source: royalcanin.com, checked 18 Oct 2026.
Questions
How much Royal Canin Medium Puppy should I feed a 20 lb puppy?
About 1 ¾ cups or 189 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 Royal Canin Medium Puppy?
The label states 410 kcal per cup, 3,869 kcal per kg (checked 18 Oct 2026). Recipes change, so check your bag.