Body Mass Index (BMI) is a measurement using height and weight to estimate whether someone is underweight, normal weight, overweight, or obese. This BMI calculator is for adults 20 and older.​

• Purpose: A quick screening tool to gauge weight-related health risks.

• Best For: Most adults as a general health indicator.

• Not Reliable For:
  - Pregnant women
  - Athletes or those with high muscle mass

• Note: BMI doesn’t reflect body composition. For a more accurate assessment, consult a healthcare provider.