Health tools
Body mass index (BMI)
Quick screening tool. It does not replace a clinical assessment. Talk to a doctor for personal advice.
BMI and health status
Common cut-offs used in many Indian screening programmes (adults; not for children).
| Health status | BMI range (kg/m²) |
|---|---|
| Under weight | < 18.5 |
| Normal weight | 18.5 – 23 |
| Over weight | 23 – 25 |
| Obese | > 25 |
BMI by age (reference only)
| Age group | Recommended (approx.) | Over weight | Obese |
|---|---|---|---|
| Under 17 | 15–20 | 20–25 | Over 25 |
| Under 35 | 18–25 | 25–30 | Over 30 |
| 35 and over | 18–25 | 25–30 | Over 30 |
BMI values below 19 for men and 18 for women can indicate an underweight condition. Individual assessment is required.
Activity & energy (illustrative)
| Activity | Approximate energy |
|---|---|
| Walking | ~100 kcal per mile (varies by weight & speed) |
| Jogging | ~100 kcal per mile, higher intensity → more |
| Swimming | ~400–600 kcal per hour (stroke & pace) |
| Cycling | ~250–500+ kcal per hour (speed, terrain) |
| Aerobics / gym | ~300–500 kcal per 45–60 min |
| Gardening | ~200–300 kcal per hour |