BMI Weight Loss Calculator
Find the precise weight you need to lose to reach a target BMI, plus a realistic timeline at 0.5 kg/week.
What is BMI Weight Loss?
Setting a target BMI rather than a target weight grounds your goal in research-backed health bands. Most overweight adults benefit greatly from moving even part of the way toward BMI 25 — research shows that 5–10% body weight loss produces large improvements in blood pressure, blood sugar and cholesterol regardless of the final number.
How is it calculated?
Target weight = target BMI × height (m)². Weight to lose = current weight − target weight. At a sustainable 0.5 kg/week deficit, divide weight to lose by 0.5 to estimate weeks needed.
Frequently Asked Questions
- What is a realistic target?
- Many adults choose BMI 24 as a healthy upper bound.
- How fast can I lose weight safely?
- 0.5–1% of body weight per week is generally considered safe.
- Should I aim for BMI 22?
- Optional — research shows most metabolic gains saturate around BMI 22–24.