Calorie Deficit Formula:
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A calorie deficit occurs when you consume fewer calories than your body burns. This is the fundamental principle behind weight loss, as your body must use stored energy (fat) to make up for the energy shortfall.
The calculator uses the calorie deficit formula:
Where:
Explanation: The formula calculates the daily calorie intake needed to achieve your weekly weight loss goal based on the principle that 3500 calories equals one pound of body fat.
Details: Creating a consistent calorie deficit is essential for sustainable weight loss. Understanding your specific deficit requirements helps you set realistic goals and avoid excessive restriction that can lead to muscle loss and metabolic adaptation.
Tips: Enter your maintenance calories (the calories you need to maintain your current weight) and your target weekly weight loss. For healthy and sustainable results, aim for 0.5-2 lbs of weight loss per week.
Q1: What is a safe calorie deficit?
A: A deficit of 500-1000 calories per day is generally safe, leading to 1-2 lbs of weight loss per week. Avoid deficits larger than 1000 calories unless under medical supervision.
Q2: How do I find my maintenance calories?
A: Use online TDEE calculators, track your intake and weight for 2-3 weeks, or consult with a nutrition professional for accurate assessment.
Q3: Why 3500 calories per pound?
A: This is the estimated energy content of one pound of body fat. While individual variations exist, it provides a reliable benchmark for weight loss calculations.
Q4: Should I adjust my deficit over time?
A: Yes, as you lose weight, your maintenance calories decrease. Recalculate your deficit every 5-10 pounds of weight loss for continued progress.
Q5: What if I'm not losing weight at the calculated deficit?
A: Your maintenance calories may be overestimated, you may be underestimating food intake, or metabolic adaptations may have occurred. Reassess your numbers and consider consulting a professional.