Biology

Dog Nutrition Calculator

Find daily calories and grams of food for a dog.

Dog weight

Life stage / activity

Food energy (kcal/100g)

Calculated Output

Daily calories (kcal) 1,059.23

Daily food 302.64

Formula: kcal = 70 × kg^0.75 × factor ; grams = kcal ÷ food energy

Step-by-Step Breakdown

1. Values used:

2. Dog weight = 20

3. Life stage / activity = 1.6

4. Food energy = 350 kcal/100g

6. Daily calories = 1,059.23kcal

7. Daily food = 302.64

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The math behind it

Daily calories = 70 × weight(kg)^0.75 × activity factor. Grams = calories ÷ (food kcal per 100 g) × 100.

20 kg active adult, 350 kcal/100g food → ~1,059 kcal ≈ 303 g.

Treats?

Keep treats under ~10% of daily calories.