What does this tool do?
Feeding amounts are driven by energy needs, not volume: a heavier or more active animal needs more calories, and foods differ in calories per kilogram. This calculator estimates daily energy from resting metabolism and converts it into grams and cost.
The Formula
Daily kcal ≈ 70 × weight(kg)^0.75 × activity factor; monthly cost = (daily kcal ÷ kcal per kg) × 30 × price per kgFrequently Asked Questions
How do I know if I am feeding the right amount?
Use body condition: ribs should be easy to feel but not sharply visible, and there should be a waist when viewed from above. Adjust portions gradually and ask a vet if weight changes unexpectedly.
Why is wet food more expensive per day?
Wet food is mostly water, so you buy fewer calories per kilogram. It can still help with hydration or palatability, but the daily cost is usually higher than dry food.