Weight Loss Percentage Calculator
Total kilograms lost only tell half the story — percentage of starting weight is how challenges and clinics usually track progress.
Enter your details above and the result will appear here.
How to use
- Enter your starting weight.
- Enter your current weight.
- Your percentage lost and kilograms lost appear instantly.
Note
Percentage lost = (start - current) / start x 100. A loss of 5 to 10 percent of starting weight is the range commonly associated with meaningful health improvements in published guidance. Estimate only — not medical advice.