Inputs
Calorie
This estimate uses the Mifflin-St Jeor formula plus an activity multiplier.
Result
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Result explanation
How to read this result
Visualization
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Calorie Calculator
Estimate daily calorie targets using age, sex, body size, activity, and goal adjustment.
Sponsored
Guide
Using the Calorie Calculator
What the calculator does
When the goal is to estimate daily calorie targets using age, sex, body size, activity, and goal adjustment, this calculator gives you a fast working estimate.
It works best as a reference estimate you can compare against other inputs, habits, or professional guidance.
Formula and calculation explanation
Enter Sex, Age, Weight, Weight unit, Height, Height unit, Activity level, and Goal. Those values let the page estimate daily calorie targets using age, sex, body size, activity, and goal adjustment.
This calculator estimates daily maintenance calories from BMR and activity level, then applies the selected surplus or deficit for your goal.
Daily calorie target
\[Calories = (BMR \times Activity\ Multiplier) + Goal\ Adjustment\]
A negative adjustment creates a deficit and a positive adjustment creates a surplus.
Real-world examples
- Real-world setup: try sex Male, age 32, weight 175, and weight unit Pounds (lb) when you want to move from a rough question to a concrete scenario.
- What-if example: rerun the same setup with a different weight to compare how much the headline answer moves.
Step-by-step walkthrough
- Enter Sex, Age, Weight, Weight unit, Height, Height unit, Activity level, and Goal.
- Choose the correct mode, category, or unit options before you calculate.
- Click Calculate Calorie. The calculator applies the method shown above and updates the answer instantly.
- Review the daily calories, then adjust one input at a time to compare scenarios cleanly.
FAQs
What does the daily calories result mean?
The main result shown here is daily calories. Adjust the inputs above to compare different scenarios and see how the answer changes.
Does this replace medical advice or diagnosis?
No. Health calculators are best used for rough planning and screening. They should support, not replace, individualized advice from a qualified professional.
Why might this calculator differ from another tool?
Different tools may use different reference formulas, rounding rules, or category cutoffs. This page uses the method explained in the formula section above.
Common mistakes
- Choosing a unit or mode that does not match the number entered in the field.
- Changing several inputs at once, which makes it harder to see which variable actually moved the result.
Edge cases
- If a required field is left blank or contains an unsupported value, the calculator will not return a useful result until the input is corrected.
Interpretation of results
The main result shown here is daily calories. Adjust the inputs above to compare different scenarios and see how the answer changes.
- When you compare scenarios, change one key input at a time so you can tie each output change back to a specific assumption.
Related concepts and calculators
Related ideas for this page include estimates, reference ranges, body metrics, inputs and assumptions, and screening.