Calorie Deficit Equation:
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The calorie deficit equation calculates the daily calorie intake needed to achieve your desired weight loss in 3 months (90 days). It's based on the principle that 1 kg of body weight equals approximately 7700 kcal.
The calculator uses the calorie deficit equation:
Where:
Explanation: The equation calculates the daily calorie deficit needed to lose the specified weight in 3 months, then subtracts this from your maintenance calories (TDEE).
Details: Accurate calorie calculation helps create a sustainable weight loss plan without extreme deficits that could lead to muscle loss or metabolic slowdown.
Tips: Enter your TDEE (use a TDEE calculator if unknown) and desired weight loss in kg. For healthy weight loss, aim for 0.5-1 kg per week (2-4 kg in 3 months).
Q1: Is 3 months a realistic timeframe for weight loss?
A: Yes, 3 months allows for steady, sustainable weight loss of 4-12 kg depending on your starting point and deficit.
Q2: Should I adjust my calories as I lose weight?
A: Yes, recalculate periodically as your TDEE decreases with weight loss (every 4-5 kg is recommended).
Q3: What if I'm not losing weight at the calculated calories?
A: Your actual TDEE may be lower than estimated. Reduce calories by 100-200 kcal/day and reassess after 2 weeks.
Q4: Can I lose weight faster than this calculation?
A: While possible, deficits >500 kcal/day may be difficult to maintain and could lead to muscle loss.
Q5: Should men and women use the same calculation?
A: The math is the same, but men typically have higher TDEEs due to greater muscle mass on average.