About this calculator
Enter your height and choose the standard. You get the healthy range and the weights at which overweight and obesity begin.
How to use it
- Enter your height.
- Choose Indian or WHO cut-offs.
- Read the range.
The formula
Weight = BMI × height (m)²
- BMI 18.5
- lower limit of healthy weight
- BMI 22.9 or 24.9
- upper limit, Indian or WHO
Worked example
170 cm, Indian standard
- Lower limit = 18.5 × 1.7² = 53.5 kg.
- Upper limit = 22.9 × 1.7² = 66.2 kg.
- Overweight begins at 66.5 kg and obesity at 72.2 kg (BMI 25).
What the result means
Aim to stay within the range; small changes in either direction rarely matter.
Assumptions
- Adults over 18.
Limitations
- BMI does not measure body fat directly; muscular people can be above the range and healthy.
- Not for children, pregnant women or some older adults.
Frequently asked questions
What is a healthy BMI for Indians?
18.5 to 22.9. 23 to 24.9 is overweight and 25 or more is obese under Indian guidelines.
Why are Indian cut-offs lower?
South Asians tend to carry more body fat and face diabetes and heart risk at lower BMI.
Does this apply to children?
No. Children need age- and sex-specific BMI charts.
Not medical advice. This calculator is a general screening tool and cannot diagnose any condition. Results are estimates. Please talk to a doctor or a qualified health professional about your health and before making changes to diet, exercise or treatment.
Last reviewed on 1 October 2026. Found a mistake? Tell us.