Weight Loss Rate Calculator
Compare starting weight, target weight, and timeline to estimate weekly change.
Estimated result
Check the entered values.
This describes a mathematical rate; it does not guarantee results or the composition of weight changed.
Rate from target and timeline
The difference between weights is divided by weeks and also expressed as a percentage of starting weight.
Energy equivalent
The 7,700 kcal/kg conversion is theoretical and does not model adaptation or body composition.
Frequently asked questions
Does it predict my weight loss?
No. It describes the mathematical rate implied by the entered values.
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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