Calorie Deficit Formula:
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Definition: This calculator determines the difference between calories burned (TDEE) and calories consumed, known as a calorie deficit.
Purpose: It helps individuals track their weight loss progress by showing how many fewer calories they're consuming than burning.
The calculator uses the formula:
Where:
Explanation: A positive deficit means you're consuming fewer calories than you burn, leading to weight loss.
Details: Maintaining a proper calorie deficit is fundamental for healthy, sustainable weight loss (typically 300-500 kcal/day for moderate loss).
Tips: Enter your TDEE (calculated separately) and daily calorie intake. Both values must be > 0.
Q1: What is TDEE?
A: Total Daily Energy Expenditure represents all calories you burn in a day through basal metabolism and activity.
Q2: Is a larger deficit better?
A: Not necessarily. Deficits >500-750 kcal/day can lead to muscle loss and metabolic slowdown.
Q3: How often should I recalculate?
A: Recalculate TDEE every 5-10 lbs lost, as your energy needs decrease with weight loss.
Q4: Why is my deficit but no weight loss?
A: Possible causes include water retention, inaccurate tracking, or metabolic adaptation.
Q5: What's a safe minimum calorie intake?
A: Generally not below 1200 kcal/day for women or 1500 kcal/day for men without medical supervision.