How do I read a BMI chart?

Find your height on one axis and weight on the other. The intersection gives your BMI category. Color-coded charts use blue for underweight, green for normal, yellow for overweight, and shades of red for obese categories.

What are the BMI categories on the chart?

Underweight: below 18.5. Normal: 18.5–24.9. Overweight: 25–29.9. Obese Class I: 30–34.9. Obese Class II: 35–39.9. Obese Class III: 40 and above. Each range has different health risk associations.

Is a BMI chart the same for men and women?

The standard BMI chart and categories are identical for men and women. However, at the same BMI, women typically have more body fat and men more muscle. Some health professionals use additional metrics (waist circumference, body fat %) for gender-specific assessment.

BMI Chart

A BMI chart maps weight and height to a color-coded category at a glance. Below the calculator, you will find a visual gauge spanning BMI 15 to 40+ with colored segments for each WHO category — underweight (blue), normal (green), overweight (yellow), obese I (orange), obese II (red), and obese III (dark red). Enter your numbers to see exactly where your marker lands.

BMI Calculator

Enter your height and weight to calculate your Body Mass Index.

Height

Weight

BMI Categories

WHO classification of Body Mass Index ranges.

Category	BMI Range	Status
Underweight	< 18.5	May indicate nutritional deficiency
Normal	18.5 – 24.9	Lowest health risk
Overweight	25 – 29.9	Moderate increased risk
Obese I	30 – 34.9	High risk
Obese II	35 – 39.9	Very high risk
Obese III	40+	Extremely high risk

Frequently Asked Questions

How do I read a BMI chart?: Find your height on one axis and weight on the other. The intersection gives your BMI category. Color-coded charts use blue for underweight, green for normal, yellow for overweight, and shades of red for obese categories.
What are the BMI categories on the chart?: Underweight: below 18.5. Normal: 18.5–24.9. Overweight: 25–29.9. Obese Class I: 30–34.9. Obese Class II: 35–39.9. Obese Class III: 40 and above. Each range has different health risk associations.
Is a BMI chart the same for men and women?: The standard BMI chart and categories are identical for men and women. However, at the same BMI, women typically have more body fat and men more muscle. Some health professionals use additional metrics (waist circumference, body fat %) for gender-specific assessment.

Medical disclaimer: BMI is a screening tool, not a medical diagnosis. It does not measure body fat directly and does not account for muscle mass, bone density, age, sex, or ethnicity. Consult a healthcare provider for personalized health advice.

BMI Chart

BMI Calculator

BMI Categories

Frequently Asked Questions

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