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Weight loss goal date calculator
Use your start date and progress so far to project the same average forward. It is a line on a calendar, not a promise: real weight moves unevenly and your pace can change.
About 17 weeks away, using your average of 0.76kg per week.
A projection, not a deadline. Real weight change is uneven.
The useful bit
What the answer means
This calculator does not apply an internet ‘ideal’ rate. It works out your average weekly change between the two dates you enter, then extends that exact average towards your own goal.
Water, digestion, hormones, illness and measurement timing can all move the scale. Treat the date as a rough planning marker and recalculate after a few more weeks rather than chasing it.
Transparent by design
How it works
- 1
Describe the stretch
Enter the date and weight you started from, then the date and weight you’re at now.
- 2
Add your own goal
Jabwise uses it for arithmetic only; it does not decide whether the goal suits you.
- 3
Read the range calmly
The answer shows the average used and a projection date, with the limits beside it.
weight left ÷ your average weekly change = estimated weeks remainingPlain answers
Questions people ask
How is the goal date calculated?
The calculator divides the weight already lost by elapsed weeks, then divides the remaining weight by that average weekly change.
Will I reach my goal on that exact date?
Probably not exactly. Weight change is rarely linear, so the date is best treated as a rough projection based on the period you entered.
Does the calculator recommend a rate of weight loss?
No. It only carries your own recorded average forward. If you are worried about how quickly your weight is changing, speak to your prescriber, pharmacist or GP.
Why can’t it calculate from one week?
A very short window is easily dominated by ordinary scale fluctuation. The calculator needs at least seven days, and a longer representative period is usually more useful.
Method and sources
Checked 19 October 2026. General information, not medical advice. Follow your prescriber and dispensing label.