Weight Gain Calculator
Estimate the weekly rate needed to move from current to target weight over a chosen timeline.
Estimated result
Check the entered values.
This describes a mathematical rate; it does not guarantee results or the composition of weight changed.
Planning a rate
The tool spreads the difference between current and target weight across the chosen timeline.
Unknown composition
It cannot determine how much change will be muscle, fat, water, or other body tissue.
Frequently asked questions
Is weight gain guaranteed?
No. This is a rate calculation, not a forecast.
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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