Calorie Surplus Calculator
Calculate an estimated calorie target from maintenance and a configurable surplus.
Estimated result
Check the entered values.
The energy equivalent is theoretical; actual weight does not change linearly or predictably.
Adding a surplus
The tool adds an amount or percentage to estimated maintenance and reports daily and weekly adjustment.
Weight is not the same as muscle
Change composition depends on training, diet, and individual factors; the formula cannot predict it.
Frequently asked questions
Does this guarantee muscle gain?
No. It only calculates an approximate energy target.
Is personal data sent to a server?
No. Calculations run locally in your browser and these values are not stored by default.
Can I use the result as medical advice?
No. It is an educational reference and does not replace individual assessment.
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