Goal Weight Date Calculator
Estimate the date you will hit a goal weight.
Enter your values
Enter the current weight in kg.
Enter the goal weight in kg.
Enter the weekly rate of change in kg/week.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- Weeks needed
- 20
- Estimated date
- 12/30/2026
- Total change needed
- 10 kg
Quick answer
The goal date is the weight to go divided by your weekly rate, converted into weeks and added to today's date.
weeks = (current - goal) / weekly rate
At a glance
| What it does | Estimate the date you will hit a goal weight. |
|---|---|
| Category | Health |
| Inputs needed | Current weight, Goal weight, Weekly rate of change |
| Main output | Weeks needed |
| Formula | weeks = (current - goal) / weekly rate |
| Cost | Free — no sign-up, no download |
How to use the Goal Weight Date Calculator
- 1Enter current weight, goal weight and your realistic weekly rate.
- 20.5-1 kg per week is a commonly sustainable range for weight loss.
- 3This is a planning estimate, not a guarantee — rates naturally slow as you approach goal weight.
Inputs explained
- Current weight(kg)
- Enter the current weight in kg.
- Goal weight(kg)
- Enter the goal weight in kg.
- Weekly rate of change(kg/week)
- Enter the weekly rate of change in kg/week.
Worked example
Using the values the calculator loads with:
Inputs
- Current weight88 kg
- Goal weight78 kg
- Weekly rate of change0.5 kg/week
Results
- Weeks needed20
- Estimated date12/30/2026
- Total change needed10 kg
Frequently asked questions
Why does my rate slow down near goal?
Smaller bodies burn fewer calories, so the same deficit produces less loss over time.
Is faster always better?
No — very fast loss increases risk of muscle loss and rebound weight gain.
What do I need to enter into the Goal Weight Date Calculator?
Just 3 values: current weight, goal weight, weekly rate of change. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the Goal Weight Date Calculator work out the answer?
The goal date is the weight to go divided by your weekly rate, converted into weeks and added to today's date. It applies the formula weeks = (current - goal) / weekly rate and shows the working so you can check each step by hand.
Is the Goal Weight Date Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.