Calculator · BMI

BMI Calculator for Adults

Quick Body Mass Index estimate with context. Use it alongside waist-to-height ratio and the Navy body fat method for a fuller picture.

Your BMI

23.7

normal

What BMI means

  • Underweight: < 18.5
  • Healthy range: 18.5–24.9
  • Overweight range: 25–29.9
  • Obesity range: 30+

BMI doesn’t distinguish muscle from fat. Pair it with waist-to-height ratio or a body fat estimate before making big decisions.

Next steps

  • • Measure waist-to-height for cardiometabolic risk.
  • • Log everything in the comparison worksheet.
  • • Upgrade to image-based analysis for weekly check-ins.