Weight Loss Percentage Calculator
Percent of body weight lost.
Enter your values
Results update instantly as you type — no submit needed.
Results
- Percentage lost
- 8.95%
- Weight lost
- 8.5 kg
- Remaining to goal
- 8.5 kg
- Progress to goal
- 50%
- Clinically meaningful (5%)?
- Yes
Quick answer
Weight loss percentage is pounds or kilos lost divided by starting weight — a 5% loss already improves health markers.
% lost = (Start − Current) ÷ Start × 100
How to use the Weight Loss Percentage Calculator
- 1Enter your starting weight.
- 2Enter your current weight.
- 3Add your goal to track progress.
Frequently asked questions
Why does 5% matter?
A 5% loss meaningfully improves blood pressure, glucose and lipids.
How fast is safe?
0.5–1% of body weight per week is the usual recommendation.