Pet Food Calorie Calculator — Free ME Estimator | PetHealthCalc

Estimate metabolizable energy (ME) of pet food in 3 seconds for free. No login required. Understand your dog or cat food label accurately.

Guide

Understanding the caloric density of your pet's food lets you feed precisely instead of relying on vague guidelines.

Because labels rarely list calories, this tool reconstructs them using the Modified Atwater equation. The estimated Metabolizable Energy can then be used in our daily food calculator.

Find the exact energy density in 3 seconds for free, with no login required.

How to Use

  1. Locate the 'Guaranteed Analysis' on your pet food label.
  2. Enter the percentages for Crude Protein, Crude Fat, Crude Fiber, Ash, and Moisture.
  3. The calculator will determine the NFE (carbohydrates) percentage.
  4. View the estimated Metabolizable Energy (ME) in kcal per kilogram.

Frequently Asked Questions

What is NFE in pet food?

Nitrogen-Free Extract (NFE) represents the soluble carbohydrates in the food. It is calculated by subtracting protein, fat, fiber, ash, and moisture from 100%.

Why is ME important?

Metabolizable Energy (ME) is the actual energy available for your pet to use after digestion and excretion. It is more accurate than total calories.

What if my label doesn't list 'Ash'?

If ash is not listed, a common estimate is 5-8% for dry food and 2-3% for wet food.