Guide · Updated November 2026 · How we check our numbers
How Much Should I Feed My Dog? A Calorie-Based Guide
The feeding chart on a bag of food is a starting point. A calorie-based method, used by many vets, gives a more personal estimate.
Step 1: resting energy
Resting energy requirement (RER) = 70 × body weight in kg0.75. For a 20 kg (44 lb) dog: 70 × 9.457 ≈ 662 calories.
Step 2: life-stage factor
Multiply RER by a factor: about 1.6 for a neutered adult, 1.8 for an intact adult, 1.2 for a less active or senior dog, 1.0 for weight loss, and 2.0–3.0 for growing puppies. Our neutered adult needs about 1,059 calories a day.
Step 3: cups
Divide by the calories per cup on the label. At 350 kcal per cup, that is about 3 cups a day, split into two meals.
Adjust by body condition
You should be able to feel the ribs easily without seeing them, and see a waist from above. Weigh your dog every few weeks and change the amount by about 10% if needed. Remember treats count — keep them near 10% of daily calories.
Try the calculators
This guide is general information, not professional advice.