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 Beneful Originals Natural with Real Farm-Raised Chicken is on the lighter side: at 360 kcal per cup it has less energy than 71% of the 140 dry dog foods in our list, so the bowl will look fuller for the same calories.
To show how much the food matters: a 40 lb spayed or neutered dog needs about 985 kcal a day. That is 2 ¾ 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 101 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 Beneful Originals Natural with Real Farm-Raised Chicken 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 cup44 g | ⅝ cup58 g | ¾ cup73 g |
| 10 lb 4.5 kg | ¾ cup73 g | 1 cup98 g | 1 ¼ cups122 g |
| 15 lb 6.8 kg | 1 cup99 g | 1 ¼ cups132 g | 1 ⅝ cups165 g |
| 20 lb 9.1 kg | 1 ¼ cups123 g | 1 ⅝ cups164 g | 2 cups205 g |
| 30 lb 13.6 kg | 1 ⅝ cups167 g | 2 ¼ cups223 g | 2 ¾ cups278 g |
| 40 lb 18.1 kg | 2 cups207 g | 2 ¾ cups276 g | 3 ⅜ cups345 g |
| 50 lb 22.7 kg | 2 ⅜ cups245 g | 3 ¼ cups327 g | 4 cups408 g |
| 60 lb 27.2 kg | 2 ¾ cups281 g | 3 ¾ cups374 g | 4 ⅝ cups468 g |
| 70 lb 31.8 kg | 3 ⅛ cups315 g | 4 ⅛ cups420 g | 5 ¼ cups525 g |
| 80 lb 36.3 kg | 3 ½ cups348 g | 4 ⅝ cups464 g | 5 ¾ cups581 g |
| 90 lb 40.8 kg | 3 ¾ cups381 g | 5 cups507 g | 6 ¼ cups634 g |
| 100 lb 45.4 kg | 4 ⅛ cups412 g | 5 ½ cups549 g | 6 ¾ cups686 g |
Label values: 360 kcal per cup, 3,565 kcal per kg. Source: purina.com, checked 18 Oct 2026.
Questions
How much Purina Beneful Originals Natural with Real Farm-Raised Chicken should I feed a 50 lb dog?
About 3 ¼ cups or 327 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 Beneful Originals Natural with Real Farm-Raised Chicken?
The label states 360 kcal per cup, 3,565 kcal per kg (checked 18 Oct 2026). Recipes change, so check your bag.
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- IncrediBites Small Dog With Farm-Raised Chicken
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- Freshly Prepared Meals Beef and Chicken
- IncrediBites Small Breed Loaf with Real Chicken
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