Check whether you are overweight and how far above the healthy range you are.
A BMI of 25 or more is overweight (23 or more for Asian populations). A 170 cm adult weighing 85 kg has a BMI near 29, about 12.8 kg above the healthy range.
The Overweight Calculator checks your BMI against the WHO cut-off (25) or the Asian cut-off (23). If you are above it, it shows how much weight lies above the healthy range, what 5% and 10% of your weight look like, and how long gradual change might take. If you are in or below the healthy range it tells you so and does not show any weight-loss numbers.
Even a loss of 5–10% of body weight can improve blood pressure, blood sugar and joint pain, and slow, steady change is easier to keep. Work out calories with the Calorie Calculator and TDEE Calculator, and get personal advice from a doctor or dietitian.
The calculator applies the standard published formulas step by step.
| Item | Value |
|---|---|
| BMI | 29.41 kg/m² |
| Highest weight at BMI under 25 | 72.2 kg (159.2 lb) |
| Weight above that | 12.8 kg (28.2 lb) |
| At a gradual 0.5 kg a week, that would take about | 26 weeks (0.5 years) |
| 5% of your weight | 4.3 kg (9.4 lb) |
| 10% of your weight | 8.5 kg (18.7 lb) |
| Weight | Above the range |
|---|---|
| 75 kg | 2.8 kg (6.1 lb) |
| 85 kg | 12.8 kg (28.2 lb) |
| 95 kg | 22.8 kg (50.2 lb) |
| 105 kg | 32.8 kg (72.3 lb) |
| 85 kg, Asian cut-off | 18.6 kg (40.9 lb) |
25 to 29.9 under WHO categories; from 23 for Asian populations, where 25 or more is obese.
Many guidelines start with 5–10% of body weight, which already improves health markers. A doctor can set a goal for you.
About 0.25–0.5 kg a week is usually considered gradual and sustainable.
No. Waist size and body-fat percentage add useful information, and muscular people may be 'overweight' by BMI without excess fat.
If your BMI is below the healthy range, no weight-loss figures are shown — please speak to a doctor.
Eating a balanced diet with fewer ultra-processed foods, being active and sleeping well help. Ask your doctor about the right plan.
It uses the published formula: weight above range = weight − (cut-off − 0.01) × height² The full method and a worked example are shown on this page.
No. The calculator gives general estimates for information and education. It cannot diagnose or treat anything, so please speak to a doctor or qualified professional about your own health.
Yes. Choose centimetres or feet and inches for height, and kilograms, pounds or stone for weight; the results are converted for you.
No. Everything is calculated in your browser and nothing you enter is uploaded or saved.
