Weight Loss Time Calculator
The Weight Loss Time Calculator estimates how many weeks it will take to reach your target weight based on your current weight, goal weight, and daily calorie deficit. This uses the 3,500-calorie-per-pound rule as a foundation. Actual results vary based on metabolism, activity, and body composition changes.
How to Use This Calculator
- 1
Enter your current weight in pounds.
- 2
Enter your goal weight.
- 3
Enter your daily calorie deficit (calories eaten below TDEE).
- 4
Click Calculate to see the estimated number of weeks.
Frequently Asked Questions
It's a useful guideline, not a guarantee. Weight loss slows as you lose weight (your TDEE drops), and factors like water retention, muscle gain, and hormones all affect results. Expect ±20% variance.