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 Adult Small Breed Shredded Blend Chicken & Rice sits in the middle of the 140 dry dog foods we track, at 397 kcal per cup.
To show how much the food matters: a 40 lb spayed or neutered dog needs about 985 kcal a day. That is 2 ½ 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 97 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 Adult Small Breed Shredded Blend Chicken & 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 | ⅜ cup38 g | ½ cup51 g | ⅝ cup63 g |
| 10 lb 4.5 kg | ⅝ cup64 g | ⅞ cup85 g | 1 ⅛ cups107 g |
| 15 lb 6.8 kg | ⅞ cup87 g | 1 ¼ cups116 g | 1 ½ cups145 g |
| 20 lb 9.1 kg | 1 ⅛ cups108 g | 1 ½ cups144 g | 1 ⅞ cups180 g |
| 30 lb 13.6 kg | 1 ½ cups146 g | 2 cups195 g | 2 ½ cups243 g |
| 40 lb 18.1 kg | 1 ⅞ cups181 g | 2 ½ cups242 g | 3 ⅛ cups302 g |
| 50 lb 22.7 kg | 2 ¼ cups214 g | 2 ⅞ cups286 g | 3 ⅝ cups357 g |
| 60 lb 27.2 kg | 2 ½ cups246 g | 3 ⅜ cups327 g | 4 ¼ cups409 g |
| 70 lb 31.8 kg | 2 ⅞ cups276 g | 3 ¾ cups368 g | 4 ¾ cups460 g |
| 80 lb 36.3 kg | 3 ⅛ cups305 g | 4 ⅛ cups406 g | 5 ¼ cups508 g |
| 90 lb 40.8 kg | 3 ⅜ cups333 g | 4 ½ cups444 g | 5 ¾ cups555 g |
| 100 lb 45.4 kg | 3 ¾ cups360 g | 4 ⅞ cups480 g | 6 ⅛ cups600 g |
Label values: 397 kcal per cup, 4,075 kcal per kg. Source: purina.com, checked 18 Oct 2026.
Questions
How much Purina Pro Plan Adult Small Breed Shredded Blend Chicken & Rice should I feed a 50 lb dog?
About 2 ⅞ cups or 286 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 Adult Small Breed Shredded Blend Chicken & Rice?
The label states 397 kcal per cup, 4,075 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