Health Health estimation

BMI Calculator

Compute body mass index from weight and height with category classification.

Health

BMI Calculator computes body mass index from height and weight and shows the corresponding BMI range. Use it as a quick informational estimate alongside the exact height and weight entered, not as a diagnosis or complete health assessment.

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Input guidance

Enter the requested measurements in the units shown, then treat the output as an estimate rather than a diagnosis.

How to use this tool

Enter weight in kilograms.
Enter height in centimetres.
Review the BMI value and range, then interpret it with the health limitations shown on the page.

BMI Inputs

Result

BMI: 23.51

Category: Normal

Embed this tool

Add this snippet to any website to render a compact ToolPatch widget without an iframe.

<div class="toolpatch-embed" data-toolpatch-tool="bmi-calculator"></div>
<script async src="https://tool-patch.com/embed.js"></script>

Formula or method

BMI is calculated as weight in kilograms divided by height in meters squared.
The range label follows common adult BMI cutoffs and does not account for age, pregnancy, muscularity, ethnicity, or clinical history.

How to interpret the result

BMI is a screening ratio, not a diagnosis.

The calculated BMI is 23.51, which this tool classifies as normal.
BMI is a screening ratio based on weight and height; it does not distinguish fat mass from muscle mass.
Use the category as general context rather than a diagnosis or complete health assessment.

Review note and limitations

Results are estimates, not clinical measurements or medical advice.
Accuracy can vary by measurement quality, body composition, age, sex, and population.

Related tools and workflows

Related tools help check adjacent inputs, outputs, and assumptions before using the result in a larger workflow. Start with Body Fat Estimator when you need a quick follow-up check.

Body Fat Estimator

Estimate body fat percentage from body measurements.