Cat Calorie Calculator
Determine your cat's daily resting and maintenance energy requirements based on weight and activity levels.
Input Parameters
Enter details for calculation.
Resting Energy Requirement (RER)
Maintenance Energy Requirement (MER)
Expert Tip
Resting Energy Requirement (RER) scales non-linearly. Feed according to your cat's target weight if they are overweight, rather than their current weight.
Calculation Methodology & Details
Formula
The metabolic energy requirement relies on clean weight scaling to calculate basal needs (RER). This value is multiplied by activity factors (ranging from 0.8 for weight-loss to 4.0 for peak lactation).
Important Disclaimer
The provided calculations are for informational purposes and guidelines only. They do not replace professional veterinary advice or diagnosis.
How to Calculate Cat Calories: Step-by-Step
Compute daily energy targets using these steps:
Determine Weight in Kilograms
Convert lbs to kg by dividing by 2.2 if needed.
Calculate the RER
Raise the kg weight to the 0.75 power and multiply by 70.
Apply the Lifestyle Multiplier
Select and multiply by the appropriate factor representing active or neutered states.