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Pet Food Calculator
The right portion, every day.
🛒 Need to restock?
Now that you know the right portion, browse a wide range of dog food and treats on Walmart — from everyday kibble to high-protein formulas.
Browse Dog Food on WalmartAffiliate link: we may earn a commission if you buy, at no extra cost to you.
⚠️ Estimates based on standard metabolic formulas. Always follow your food brand’s feeding guide and consult your vet for specific dietary needs.
How to use
- Select dog or cat and enter weight in kg.
- Choose activity level.
- Get daily kcal and dry-food grams instantly.
About this tool
Overfeeding is a common nutrition problem in pets. This calculator uses the veterinary RER formula to estimate daily needs.
All calculations happen in your browser.
FAQ
What is RER?
Resting Energy Requirement — the baseline calories for basic body function, calculated as 70 × (weight in kg)^0.75.
Should I follow this or the bag?
Use both: start with the bag’s guide, sanity-check with this calculator, and adjust by body condition.
What about wet food or raw?
Calorie density differs. This estimates dry food (~3.5 kcal/g). For other foods, use the kcal number with your food’s label.
