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Cat Calorie Calculator

Estimate a cat's resting energy requirement (RER) from body weight using a standard veterinary formula.

Cat Calorie Calculator

FREE ONLINE TOOL

Assumptions and limits

Estimates resting energy requirement (RER), not a daily feeding prescription. Actual energy needs vary with age, activity, body condition, health and life stage. Ask a veterinarian for an individualized feeding plan.

Formula

RER (kcal/day) = 70 × body weight (kg)^0.75. For pounds, convert to kilograms before applying the formula.

Example

For a 4 kg cat, RER = 70 × 4^0.75 ≈ 198 kcal/day.

Method source — Merck Veterinary Manual

STEP BY STEP

How to use cat calorie calculator

Calculate and read the result in the displayed units.
Review the formula, example and limits.

IN PRACTICE

Example

For a 4 kg cat, RER = 70 × 4^0.75 ≈ 198 kcal/day.

GOOD TO KNOW

Cat Calorie Calculator

Cat Calorie Calculator

Formula

Example

How to use cat calorie calculator

Example

What does the calorie result mean?

Practical guides

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