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
Hill's Science Plan Medium Breed Adult with Chicken sits in the middle of the 46 dry dog foods we track, at 3,724 kcal per kg.
To show how much the food matters: a 18 kg spayed or neutered dog needs about 979 kcal a day. That is 263 g of this food, but 237 g of Purina Pro Plan Small and Mini Puppy Healthy Start Chicken and 298 g of Bakers Meaty Meals Chicken. Same dog, same day, very different scoops.
Hill's Science Plan Medium Breed Adult with 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 |
|---|---|---|---|
| 2 kg | 38 g | 51 g | 63 g |
| 5 kg | 75 g | 101 g | 126 g |
| 10 kg | 127 g | 169 g | 211 g |
| 15 kg | 172 g | 229 g | 287 g |
| 20 kg | 213 g | 284 g | 356 g |
| 25 kg | 252 g | 336 g | 420 g |
| 30 kg | 289 g | 386 g | 482 g |
| 35 kg | 325 g | 433 g | 541 g |
| 40 kg | 359 g | 478 g | 598 g |
| 45 kg | 392 g | 523 g | 653 g |
Label values: 3,724 kcal per kg. Source: hillspet.co.uk, checked 18 Oct 2026.
Questions
How much Hill's Science Plan Medium Breed Adult with Chicken should I feed a 25 kg dog?
About 336 g a day for a spayed or neutered dog, before treats. That is 1,252 kcal a day divided by the food’s label value. Use the calculator above to adjust for your pet.
How many calories are in Hill's Science Plan Medium Breed Adult with Chicken?
The label states 3,724 kcal per kg (checked 18 Oct 2026). Recipes change, so check your bag.