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Target Weight Date Formula:
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The Target Weight Date Calculator estimates when you might reach your goal weight based on your current weight, target weight, and daily caloric deficit. It uses the scientific principle that 1 kg of body weight is approximately equivalent to 7700 kcal.
The calculator uses the following formula:
Where:
Explanation: The formula calculates how many days it would take to burn the calories equivalent to your desired weight loss at your current daily deficit.
Details: Setting realistic weight loss goals helps maintain motivation and ensures healthy, sustainable progress. A moderate deficit of 300-500 kcal/day is generally recommended for steady weight loss.
Tips: Enter your current weight and target weight in kg, your daily calorie deficit, and the current date. The calculator will estimate when you might reach your goal weight.
Q1: Is the 7700 kcal/kg rule accurate for everyone?
A: While 7700 kcal/kg is a widely used estimate, individual metabolism can vary based on body composition, activity level, and other factors.
Q2: Why might my actual results differ?
A: As you lose weight, your metabolism may slow down (adaptive thermogenesis), and your daily energy expenditure decreases, potentially slowing weight loss over time.
Q3: What's a healthy daily calorie deficit?
A: Most experts recommend a deficit of 300-500 kcal/day for steady weight loss (0.5-1 kg/week). Larger deficits may lead to muscle loss and metabolic slowdown.
Q4: Should I adjust my deficit as I lose weight?
A: Yes, as your weight decreases, your maintenance calories decrease too. Periodic adjustments may be needed to maintain the same rate of loss.
Q5: Does this account for plateaus?
A: No, this is a linear projection. Actual weight loss often includes plateaus and fluctuations due to water retention, hormonal changes, etc.