How to Use This Calculator
- Enter the amount of protein in grams in the "Protein (grams)" field.
- Optionally select the protein source from the dropdown menu.
- Click the "Calculate" button to compute the energy content.
- The calculator will display the total energy from protein in kcal and as a percentage of a 2000 kcal daily intake.
Understanding Protein Energy Conversion
The calculator uses the standard conversion factor of 4 kcal per gram of protein, which is the generally accepted value in nutrition science. This means that:
- 1 gram of protein = 4 calories
- 10 grams of protein = 40 calories
- 100 grams of protein = 400 calories
Why Use This Calculator?
This calculator is useful for:
- Estimating the energy contribution of protein in your diet
- Understanding how protein fits into your overall calorie needs
- Planning balanced meals with appropriate macronutrient ratios
- Monitoring protein intake for sports nutrition and fitness goals
Important Notes
While this calculator provides a straightforward conversion, keep in mind:
- The actual energy content of protein can vary slightly based on the specific type of protein and cooking methods.
- This calculator only calculates energy from protein and does not account for other macronutrients (carbohydrates and fats).
- For more comprehensive nutritional analysis, consider using a full dietary assessment tool.