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Time to Lose Weight Equation:
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The time to lose weight calculation estimates how long it will take to reach your weight loss goal based on your daily caloric deficit. It's based on the principle that 1 kg of body fat contains approximately 7,700 kcal.
The calculator uses the following equation:
Where:
Explanation: The equation calculates how many days it will take to burn the equivalent calories of your weight loss goal at your current daily deficit.
Details: A caloric deficit is essential for weight loss. This calculator helps you estimate how long it will take to reach your goal based on your current deficit, allowing for better planning and motivation.
Tips: Enter your weight loss goal in kilograms and your daily caloric deficit in kcal/day. Both values must be positive numbers. The result will show the estimated time in days (or weeks and days if more than 7 days).
Q1: Is 7,700 kcal really equal to 1 kg of fat?
A: This is an approximation. The exact energy content of body fat can vary slightly, but 7,700 kcal/kg is widely accepted for these calculations.
Q2: Why isn't my weight loss matching the prediction?
A: Many factors can affect actual weight loss including water retention, muscle gain, metabolic adaptation, and inaccurate tracking of calorie intake/output.
Q3: What's a safe daily caloric deficit?
A: Generally, a deficit of 500-1,000 kcal/day is recommended, leading to 0.5-1 kg weight loss per week. Extreme deficits can be unhealthy.
Q4: Does this account for metabolic slowdown?
A: No, this is a simple calculation that assumes your deficit remains constant. In reality, your metabolism may slow as you lose weight.
Q5: Can I use pounds instead of kilograms?
A: You can, but you'll need to convert the result (1 kg = 2.2 lbs). The calculator uses kg because the 7,700 kcal figure is based on kilograms.