How to use the Overweight Calculator
The overweight calculator shows your BMI category and how much weight to lose to reach a BMI of 24.9.
Open the Overweight Calculator →
What you need to enter
- Height (cm)
- Weight (kg)
The formula
BMI = weight ÷ height². Weight to lose = current weight − 24.9 × height².
Worked example
Using the default values in the calculator:
- Height (cm): 170
- Weight (kg): 85
| BMI | 29.4 |
| Category | Overweight |
| Weight to lose for BMI 24.9 | 13 kg |
Tips for better results
- Aim for steady loss of about 0.5 kg a week.
- A smaller loss can still improve health.
Common mistakes to avoid
- Aiming for a number that is not right for your body.
- Ignoring waist size and fitness.
Please note: Health calculators and guides give general estimates, not medical advice. Talk to a doctor or other qualified professional about your own health. See our Disclaimer.