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 Lamb & Rice sits in the middle of the 46 dry dog foods we track, at 3,718 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 Lamb & 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 |
|---|---|---|---|
| 2 kg | 38 g | 51 g | 63 g |
| 5 kg | 76 g | 101 g | 126 g |
| 10 kg | 127 g | 169 g | 212 g |
| 15 kg | 172 g | 230 g | 287 g |
| 20 kg | 214 g | 285 g | 356 g |
| 25 kg | 253 g | 337 g | 421 g |
| 30 kg | 290 g | 386 g | 483 g |
| 35 kg | 325 g | 433 g | 542 g |
| 40 kg | 359 g | 479 g | 599 g |
| 45 kg | 393 g | 523 g | 654 g |
Label values: 3,718 kcal per kg. Source: hillspet.co.uk, checked 18 Oct 2026.
Questions
How much Hill's Science Plan Medium Breed Adult with Lamb & Rice should I feed a 25 kg dog?
About 337 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 Lamb & Rice?
The label states 3,718 kcal per kg (checked 18 Oct 2026). Recipes change, so check your bag.