Weekly Weight Loss Calculator
Calculate weekly weight reduction rate from daily caloric deficit
Monthly reduction rate: ~1.9 kg (~4 lbs)
Mathematical Formula & Scientific Methodology
Formula: Weekly Energy Equivalence
Weekly Loss (kg) = (Daily Deficit × 7) / 7700Direct conversion between accumulated cumulative caloric deficit and adipose mass catabolism.
Model Assumptions
- 7,700 kcal deficit equates to 1 kg fat mass reduction
Variables & Standard Units
| Symbol | Physiological Meaning | Unit |
|---|---|---|
| 7700 | Standard energy density of 1 kg body fat tissue | kcal |
Scientific Limitations
- Adaptive thermogenesis can reduce effective rate over extended periods
Peer-Reviewed Scientific Citations
A new predictive equation for resting energy expenditure in healthy individuals (1990)
Mifflin MD, St Jeor ST, Hill LA, Scott BJ, Daugherty SA, Koh YO (1990) — The American Journal of Clinical Nutrition, 51(2), 241-247
Key Finding: Mifflin-St Jeor equation is accurate within ±10% of measured REE in non-obese and obese individuals, recommended by the Academy of Nutrition and Dietetics as the most reliable standard equation.
Frequently Asked Questions
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