BMI Calculator

Use this calculator to check your Body Mass Index (BMI) and find out if you are at a healthy weight.

BMI Calculator

Calculate your Body Mass Index (BMI) to understand your weight status based on your height. Used by health professionals to screen for weight categories that may lead to health problems.

Height (ft)

Inches

Weight (lbs)

Medical Disclaimer

BMI is a screening tool, not a diagnostic one. Muscle mass, bone density, and other factors can influence the result.

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Understanding the BMI Calculator

Calculate your Body Mass Index (BMI) to understand your weight status based on your height. Used by health professionals to screen for weight categories that may lead to health problems.

Guide

How to use the BMI Calculator

1Select your preferred unit system (Metric or Imperial).
2Enter your height (cm or ft/in) and weight (kg or lbs).
3The calculator automatically updates as you type.
4Review your BMI score, category, and healthy weight range.

Applications

Common Use Cases

Health Screening: Quick assessment of body fatness.

Weight Goals: determining a target healthy weight range.

Medical Checks: Standard metric used by doctors.

The Maths Behind the Calculation

BMI = kg/m²

Body Mass Index is calculated by dividing your weight in kilograms by the square of your height in meters. For imperial units: (lbs × 703) / inches².

Knowledge Base

Frequently Asked Questions

Is BMI accurate for athletes?

BMI does not distinguish between fat and muscle. Athletes with high muscle mass may be classified as overweight despite having low body fat.

What is a healthy BMI range?

A BMI between 18.5 and 24.9 is considered healthy for most adults. Below 18.5 is underweight, and 25.0 or higher is overweight.

Does age affect BMI?

While the calculation is the same, healthy BMI ranges can vary slightly for older adults to ensure sufficient bone density and nutrient reserves.

Regional Notice: United States

"Federal tax estimates are based on 2024 brackets. Consult a tax professional for official filing."

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Regional Notice: United States

"Federal tax estimates are based on 2024 brackets. Consult a tax professional for official filing."