BMI Calculator
Check your Body Mass Index and see where you fall on the WHO and Asian-Indian scales.
Indians are advised to use the lower Asian-Indian thresholds (overweight at 23, obese at 25). BMI is a screen, not a diagnosis.
About the BMI Calculator
Body Mass Index (BMI) is the quickest screen for whether your weight is in a healthy range for your height. The AlarmDaddy BMI Calculator computes your BMI from your height and weight and places you on both the standard WHO scale and the Asian-Indian scale, which uses lower cut-offs because Indians tend to carry higher body fat and metabolic risk at a given BMI.
Enter your height (in centimetres or feet/inches) and your weight in kilograms. The calculator returns your BMI number and category — underweight, normal, overweight, or obese — and highlights the healthy weight range for your height so you have a concrete target. For Indians, the calculator flags the revised thresholds where "overweight" begins at a BMI of 23 rather than 25.
BMI is a screening tool, not a diagnosis. It does not distinguish muscle from fat, so very muscular people may read as "overweight" despite being lean. Pair it with the Body Fat Calculator for a fuller picture.
How to use this calculator
- 1Enter your height in cm, or switch to feet and inches.
- 2Enter your weight in kilograms.
- 3Read your BMI number and category.
- 4See the healthy weight range for your height and the Asian-Indian threshold note.
The formula
Weight in kilograms divided by the square of height in metres. The resulting number is compared against category thresholds. WHO: under 18.5 underweight, 18.5–24.9 normal, 25–29.9 overweight, 30+ obese. Asian-Indian: 23+ overweight, 25+ obese.