BMI Calculator

Check your body mass index with US or metric units

Your BMI

23.6

Healthy weight

Healthy weight range for your height: 125–169 lbs

BMI is a screening measure, not a medical diagnosis. Consult a healthcare professional for personal advice.

About this tool

Body mass index (BMI) is the most widely used quick screening measure for weight categories. Enter your height and weight and this calculator returns your BMI instantly, with the standard CDC category and a plain-English explanation.

You can work in US units (feet, inches, pounds) or metric (centimeters, kilograms), switch any time and your entries convert automatically.

How to use the bmi calculator

  1. 1Choose your unit system: US (feet/inches, pounds) or metric (cm, kg).
  2. 2Enter your height and weight.
  3. 3Your BMI appears instantly, along with your weight category.
  4. 4Read the explanation of what your result means.

Good to know

Remember that BMI is a starting point for a conversation about health, not a verdict. Muscle mass, bone density and body composition all affect what a given number means for you personally.

Frequently asked questions

For most adults, a BMI between 18.5 and 24.9 is considered the healthy range: below 18.5 is underweight, 25–29.9 is overweight, and 30 or above is obese, using standard CDC categories.

More free tools you might find useful.

Part of Calculators on JoliTools, free tools, no sign-up.