Pet Food Calculator
Calculate your pet's daily calorie needs and recommended portion sizes based on their weight, age, and activity level.
Estimates based on average food densities. Always check your specific food packaging for feeding guidelines.
Get even more in the Pet Capsule app
Track your pet's food intake daily, get AI-powered nutrition recommendations, set feeding reminders, and monitor weight changes over time.
How This Calculator Works
Resting Energy Requirement
We start with the RER formula: 70 x (body weight in kg)^0.75 — the veterinary standard for calculating base metabolic needs.
Activity Multiplier
Your pet's daily activity and life stage determine a multiplier (1.0-2.5x) applied to the RER to get total daily calories needed.
Portion Conversion
Calories are converted to grams based on food type density. Dry kibble averages ~350 kcal/100g, wet food ~85 kcal/100g.
Daily Calorie Guide by Weight
Approximate daily calorie needs for adult dogs and cats at moderate activity.
| Weight | RER Base | Low Sedentary | Moderate Daily walks | Active High energy |
|---|
Track your pet's nutrition in the app
Pet Capsule helps you track meals, set feeding reminders, and monitor weight changes over time — all personalised to your pet's breed and needs.
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