What This Calculator Estimates
This calculator estimates daily calorie needs for maintenance and gives rough directional targets for gain or loss planning.
How to Use This Calculator
- Enter age, sex, height, weight, and activity level.
- Use current measurements for a more relevant estimate.
- Click Estimate Calories to view the result.
- Review the maintenance estimate and related guidance.
- Recalculate when your routine or body measurements change.
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Frequently Asked Questions
What does this calorie estimate represent?
It estimates daily maintenance calories based on body size, sex, age, and activity level.
Does this account for medical conditions?
No. It is a general estimate and does not replace personalized medical or nutrition guidance.
Why does activity level matter?
Activity level affects how much energy you may use beyond resting calorie needs.
Can I use this for weight-loss planning?
It can support planning, but individual needs vary and safe calorie targets can differ.
When should I recalculate calorie needs?
Recalculate when body weight, activity level, or other major inputs change.
This calculator provides informational health estimates only and is not medical advice. Individual calorie needs can vary.
Last updated: May 11, 2026