BMI Calculator
Calculate your Body Mass Index and see if it falls in a standard weight category.
About BMI Calculator
The BMI calculator turns height and weight into a Body Mass Index and labels it underweight, normal, overweight, or obese. Metric and imperial units are both supported. BMI is a screening number, not a full health diagnosis.
Enter weight and height, or switch to pounds and feet. The formula is weight in kilograms divided by height in metres squared. Categories follow the common adult bands: under 18.5, 18.5–24.9, 25–29.9, and 30 or above.
Athletes, pregnant people, and older adults often need a fuller picture because BMI does not separate muscle from fat. Use the result as one signal and talk to a clinician for health decisions. Values stay in this browser.
Frequently Asked Questions
Related Tools
Age Calculator
Calculate your exact age in years, months, and days from any birth date.
EMI Calculator
Calculate the monthly loan payment, total interest, and repayment schedule.
Percentage Calculator
Calculate a percentage of a number, percentage change, and add or subtract a percent.
Interest Calculator
Compare simple and compound interest over any number of years.