How to calculate weeks to weight goal
This estimate turns a weight goal and weekly pace into a rough timeline.
Use the table below to match each symbol with the right input. Keep units consistent before you start.
This estimate turns a weight goal and weekly pace into a rough timeline.
| Symbol | Name | Description | Unit |
|---|---|---|---|
| weight to lose | Weight to lose | Current weight minus goal weight. | lb or kg |
| weekly loss rate | Weekly loss rate | Planned average weight loss per week. | lb/week or kg/week |
- Treat the result as a planning estimate only. Real timelines vary with water weight, adherence, training, sleep, and health factors.
- 1Subtract goal weight from current weight.
- 2Convert units if needed.
- 3Divide by the planned weekly loss rate.
- 4Round up to a whole week for planning.
- 1.weight to lose = 190 - 175 = 15 lb
- 2.weeks = 15 / 1
- 3.weeks = 15
- 1.weight to lose = (82 - 76) / 0.453592 = 13.23 lb
- 2.weeks = 13.23 / 0.75
- 3.weeks = 17.64
- Treating the weeks to weight goal result as a diagnosis or a personal training plan.
- Mixing inches, centimeters, pounds, and kilograms without converting first.
- Using stale measurements after weight, activity, or training level changes.
- Ignoring the method assumptions behind the estimate.
Enter your values in the related calculator, then compare the output with the hand method above.
Open Calorie Deficit CalculatorIs the Weeks to weight goal formula a medical test?
No. It gives an estimate from a few inputs. Treat it as a planning or screening number, and ask a qualified clinician about symptoms, medication, pregnancy, eating disorders, or medical conditions.
Why can my Weeks to weight goal result differ from a wearable or lab test?
Different methods use different assumptions. Small measurement changes, activity estimates, and rounding can move the result.
Can I use the Calorie Deficit Calculator instead?
Yes. The Calorie Deficit Calculator handles the arithmetic and helps catch unit conversion mistakes.