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.
A healthy adult Newfoundland weighs males 130–150 lb, females 100–120 lb (AKC official breed standard). Below are daily amounts for that range, for a typical dry dog food (382 kcal per cup, the middle of the dog foods in our list). For your own food, use the calculator above: it is already set to a Newfoundland weight.
| Weight | Couch potato | Spayed or neutered | Very active |
|---|---|---|---|
| 100 lb 45.4 kg | 3 ⅞ cups402 g · 1,468 kcal | 5 ⅛ cups536 g · 1,958 kcal | 6 ⅜ cups670 g · 2,447 kcal |
| 110 lb 49.9 kg | 4 ⅛ cups432 g · 1,577 kcal | 5 ½ cups576 g · 2,103 kcal | 6 ⅞ cups719 g · 2,628 kcal |
| 120 lb 54.4 kg | 4 ⅜ cups461 g · 1,683 kcal | 5 ⅞ cups614 g · 2,244 kcal | 7 ⅜ cups768 g · 2,806 kcal |
| 130 lb 59.0 kg | 4 ⅝ cups489 g · 1,787 kcal | 6 ¼ cups652 g · 2,383 kcal | 7 ¾ cups816 g · 2,979 kcal |
| 140 lb 63.5 kg | 5 cups517 g · 1,890 kcal | 6 ⅝ cups690 g · 2,519 kcal | 8 ¼ cups862 g · 3,149 kcal |
| 150 lb 68.0 kg | 5 ¼ cups545 g · 1,990 kcal | 7 cups726 g · 2,653 kcal | 8 ⅝ cups908 g · 3,317 kcal |
Daily totals with no treats. Worked out from resting energy (70 × kg0.75) and the AAHA 2021 life-stage factors. Weight source note: Approximate weight.
Good to know
The AKC sums up the Newfoundland in three words: devoted, sweet, patient. How active yours really is matters more for the bowl than the breed name, so pick the column that fits your own dog.
Newfoundland puppies are large-breed puppies. VCA Animal Hospitals advises steady, measured feeding of a large-breed puppy food rather than free feeding, and notes that big breeds can take 18 to 24 months to reach adulthood. Use the puppy calculator until then.