Can I use this calculator if I am pregnant or under 18?

No, the CDC BMI calculator is designed for adults only and should not be used during pregnancy or for children and adolescents.

Does the calculator consider whether I am male or female?

No, the CDC tool does not require sex selection; it provides the same BMI categories for all adults based on height and weight.

What do the BMI categories mean?

The results map to standard WHO ranges: Underweight (below 18.5), Healthy Weight (18.5 to 24.9), Overweight (25.0 to 29.9), and Obesity classes 1, 2, and 3 (30.0 and above).

Is my BMI result a diagnosis of health problems?

No, BMI is a screening measure and is not intended to diagnose disease or illness; discuss your results with a healthcare provider.

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BMI Calculator for Women

Provided byCenters for Disease Control and Prevention (CDC)cdc.gov

CDC’s adult BMI calculator is free and available without signup. It calculates BMI from height and weight, then maps ...

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Screenshot of BMI Calculator for Women on Centers for Disease Control and Prevention (CDC) — cdc.govOpen the live tool →

About this tool

What BMI Calculator for Women does

The CDC Adult BMI Calculator lets users determine their Body Mass Index by entering height and weight in either US customary or metric units. The tool produces a numeric BMI score and places it into a standard category—Underweight, Healthy Weight, Overweight, or Obesity (including Class 1, 2, and 3)—using World Health Organization–based tables. It also offers contextual notes about maintaining a healthy BMI and links to further health resources. The CDC version stands out because it is an official government site with no advertisements, a clean interface that separates input fields for feet/inches versus centimeters, and built-in validation that prevents entries outside realistic height and weight ranges. Compared with other free BMI calculators, it provides clear, categorized results without requiring sex selection, and it includes brief explanatory text about BMI’s role as a screening measure and its limitations.

Step by step

How to use the Centers for Disease Control and Prevention (CDC) BMI Calculator for Women

1
Open the CDC Adult BMI Calculator page.
2
Select US Customary Units or Metric Units.
3
Enter your height using the appropriate fields (feet and inches, or centimeters).
4
Enter your weight using the appropriate fields (pounds or kilograms).
5
Click the Calculate button to view your BMI score and category.

Is it right for you

Best for

Adults who want a quick, free BMI assessment from a trusted public health source without ads or account requirements.

Limitations

BMI does not account for muscle mass, bone density, or body composition.
The tool is designed for adults and may not be appropriate for children, adolescents, or pregnant people.
Results are a screening measure and not a medical diagnosis.

Questions

BMI Calculator for Women FAQ

Can I use this calculator if I am pregnant or under 18?: No, the CDC BMI calculator is designed for adults only and should not be used during pregnancy or for children and adolescents.
Does the calculator consider whether I am male or female?: No, the CDC tool does not require sex selection; it provides the same BMI categories for all adults based on height and weight.
What do the BMI categories mean?: The results map to standard WHO ranges: Underweight (below 18.5), Healthy Weight (18.5 to 24.9), Overweight (25.0 to 29.9), and Obesity classes 1, 2, and 3 (30.0 and above).
Is my BMI result a diagnosis of health problems?: No, BMI is a screening measure and is not intended to diagnose disease or illness; discuss your results with a healthcare provider.

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