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
Purina Pro Plan All Ages Sport Performance 30/20 Salmon & Rice is one of the more calorie-dense dry dog foods we track: at 534 kcal per cup it has more energy than 100% 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 1 ⅞ 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.
Purina Pro Plan All Ages Sport Performance 30/20 Salmon & Rice 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 | ¼ cup35 g | ⅜ cup47 g | ½ cup58 g |
| 10 lb 4.5 kg | ½ cup59 g | ⅝ cup79 g | ⅞ cup98 g |
| 15 lb 6.8 kg | ⅝ cup80 g | ⅞ cup106 g | 1 ⅛ cups133 g |
| 20 lb 9.1 kg | ⅞ cup99 g | 1 ⅛ cups132 g | 1 ⅜ cups165 g |
| 30 lb 13.6 kg | 1 ⅛ cups134 g | 1 ½ cups179 g | 1 ⅞ cups224 g |
| 40 lb 18.1 kg | 1 ⅜ cups167 g | 1 ⅞ cups222 g | 2 ¼ cups278 g |
| 50 lb 22.7 kg | 1 ⅝ cups197 g | 2 ⅛ cups263 g | 2 ¾ cups328 g |
| 60 lb 27.2 kg | 1 ⅞ cups226 g | 2 ½ cups301 g | 3 ⅛ cups376 g |
| 70 lb 31.8 kg | 2 ⅛ cups253 g | 2 ¾ cups338 g | 3 ½ cups422 g |
| 80 lb 36.3 kg | 2 ⅜ cups280 g | 3 ⅛ cups374 g | 3 ⅞ cups467 g |
| 90 lb 40.8 kg | 2 ½ cups306 g | 3 ⅜ cups408 g | 4 ¼ cups510 g |
| 100 lb 45.4 kg | 2 ¾ cups331 g | 3 ⅝ cups442 g | 4 ⅝ cups552 g |
Label values: 534 kcal per cup, 4,433 kcal per kg. Source: purina.com, checked 18 Oct 2026.
Questions
How much Purina Pro Plan All Ages Sport Performance 30/20 Salmon & Rice should I feed a 50 lb dog?
About 2 ⅛ cups or 263 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 Purina Pro Plan All Ages Sport Performance 30/20 Salmon & Rice?
The label states 534 kcal per cup, 4,433 kcal per kg (checked 18 Oct 2026). Recipes change, so check your bag.
More from Purina Pro Plan
- Adult Sensitive Skin & Stomach Salmon & Rice
- Puppy Sensitive Skin & Stomach Salmon & Rice
- Puppy Chicken & Rice
- Adult Complete Essentials Shredded Blend Chicken & Rice with Probiotics
- Adult Large Breed Chicken & Rice
- Adult Toy Breed Chicken & Rice
- Weight Management Chicken and Rice
- Adult 7+ Shredded Blend Chicken & Rice Large Breed Senior
- Complete Essentials Adult Chicken & Rice Entrée Classic
- Sensitive Skin & Stomach Salmon & Rice Entrée Classic