Calorie & Weight Change Planner
Estimate how body weight may change at a consistent daily calorie intake.
Estimated target date —
Starting maintenance —
Projected weight after 1 year —
Long-term model plateau —
Daily calorie difference —
Calories for selected target date Set a date
—
The curve is a model estimate assuming the same calorie intake and activity level every day. Short-term water changes are not modelled.
Projection milestones
| Date | Elapsed | Weight | Change |
|---|
Model, limits and sources
This uses the long-term linearised adult body-weight model published by Hall and colleagues, with the Mifflin–St Jeor resting-energy equation and the selected physical activity level. Unlike the static 3,500-calorie rule, expenditure changes as body weight changes.
The model assumes a consistent intake and does not know your health, medication, actual metabolism, body-water fluctuations or adherence. It is not suitable for anyone under 18, pregnant or breastfeeding, and it is not medical advice.