Estimate daily energy needs using an age-, size- and activity-based reference equation.
Estimated Energy Requirement Calculator
EER Form
Results
EER
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Table of Contents
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What is Estimated Energy Requirement?
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How to Use This Calculator
- Enter or select Gender, Age, Height, Weight, Activity Level.
- Check the unit beside each measurement. For a percentage or rate, use the scale and time period stated in the form.
- Choose Calculate, then compare the output with the formula and example below. If you change a value or option, calculate again to update the result.
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Formula Used
Adult male form: EER=662−9.53A+PA(15.91W+539.6H), with W in kg and H in meters.
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Variables Explained
| Input | What it means |
|---|---|
| Gender | Select the equation or reference category that applies to the measurement being assessed. |
| Age | Age in the time unit shown; most adult equations use completed years. |
| Height | Vertical body or object measurement. Select its actual unit before calculating. |
| Weight | Measured mass in the chosen unit; pounds and kilograms are not numerically interchangeable. |
| Activity Level | The activity category or multiplier used to adjust the base estimate. |
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Worked Example
With age 30, weight 70 kg, height 1.75 m and PA=1, this form gives about 2,435 kcal/day.
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Why Use This Calculator?
Use this as a starting reference for planning or checking quantities. Where the page estimates a person’s needs, the estimate should be considered alongside actual intake, trends and individual circumstances.
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Common Mistakes
- Activity coefficients are specific to the equation and cannot be swapped freely with another calculator’s multipliers.
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Frequently Asked Questions
Is the result an exact personal requirement?
It is a reference or model-based estimate. Actual needs depend on the person, the measurement method and the situation; a planning estimate should not be treated as a prescribed intake.
Why can another nutrition calculator differ?
Different tools use different reference tables, equations, ingredient densities or activity assumptions. Compare those choices as well as the input amounts.
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