BMI Calculator
Calculate your Body Mass Index (BMI) using your height and weight. BMI is a simple screening tool — it does not directly measure body fat and may not be accurate for athletes, older adults, or those with high muscle mass.
23.9Normal
BMI = 65 kg ÷ (1.65 m)² = 23.9
Understanding Your BMI
BMI is calculated by dividing your weight in kilograms by your height in metres squared. It is widely used as a quick way to categorise weight status, but it has important limitations.
For South Asian populations, research suggests that health risks may begin at lower BMI values. The World Health Organisation has proposed adjusted categories for Asian populations where overweight may begin at BMI 23 rather than 25. This is because South Asians tend to carry more visceral fat at lower BMIs compared to Western populations.
Disclaimer: All calorie and nutrition estimates are for informational and educational purposes only. They are not a substitute for professional medical or dietary advice. Consult a healthcare provider before making significant changes to your diet.
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Frequently Asked Questions
What is BMI?
Body Mass Index (BMI) is a value calculated from your weight and height. It provides a rough estimate of whether your weight falls within a healthy range for your height. The formula is: BMI = weight (kg) ÷ height (m)².
What is a healthy BMI range?
A BMI between 18.5 and 24.9 is generally considered normal weight. Below 18.5 is underweight, 25–29.9 is overweight, and 30 or above is classified as obese. For Indian populations, some experts suggest that health risks increase at lower BMI values (above 23).
Is BMI accurate for everyone?
No. BMI does not distinguish between muscle mass and fat mass. Athletes, pregnant women, growing children, and the elderly may get misleading results. It is a screening tool, not a diagnostic one. Consult a healthcare provider for a complete assessment.
How often should I check my BMI?
Checking your BMI once every few months is usually sufficient. More important than the number itself is tracking your trend over time and focusing on healthy habits.