Weight loss percentage calculator

Percent of body weight lost is a fairer way to compare progress than kilos or pounds, and it’s how clinical studies report results.

Calculated in your browser. Nothing you enter is sent anywhere.

Formula: (starting weight − current weight) ÷ starting weight × 100.

FAQ

Frequently asked questions

What is a good weight loss percentage?

Losing 5% of your starting weight is a common first milestone linked with health benefits for people with overweight; 10% is a common second.

How fast should I lose weight?

Around 0.5–1% of body weight per week is a common guideline for sustainable loss. Talk to your doctor for advice for you.