Calculators

BMI Calculator Online

Enter height and weight in metric or imperial units to calculate BMI and see the health category.

Your files are processed locally in your browser. Nothing is uploaded or stored.

Measurement system
Weight (kg)
Height (cm)

Your BMI

Enter values

Category

BMI Ranges

Underweight< 18.5
Normal weight18.5 – 24.9
Overweight25 – 29.9
Obese30+

Features

Key features of BMI Calculator

Calculate Body Mass Index from height and weight.

Support both metric (kg/cm) and imperial (lb/in) units.

Display BMI category: underweight, normal, overweight, or obese.

Show a visual BMI scale for quick reference.

Calculate locally with no data stored or uploaded.

Benefits

Why use this tool

Get a quick BMI estimate without visiting a health portal.

Switch between metric and imperial units easily.

Keep personal health data private in the browser.

Use cases

Common ways to use BMI Calculator

1

Estimate BMI for personal fitness tracking.

2

Check BMI category before a health screening.

3

Calculate BMI for educational or informational purposes.

Process

How to use BMI Calculator

Step 1

Enter your height and weight.

Step 2

Choose metric or imperial units.

Step 3

View your BMI and health category.

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Related guides

Guides for this tool

calculators

How to Calculate BMI Online for Free

Learn how to calculate your Body Mass Index using a free browser-based tool. Supports metric and imperial units with visual BMI scale.

Jun 7, 2026

FAQ

Frequently Asked Questions

Is my health data stored?

No. BMI is calculated locally in your browser and nothing is saved or uploaded.

Does BMI apply to everyone?

BMI is a general screening tool. It may not apply equally to athletes, children, or elderly individuals.

Is this tool free to use?

Yes. MultiTool Panda tools are free and do not require sign-up.

Does this tool work on mobile?

Yes. The interface is responsive and works in modern mobile browsers.

Do I need to install software?

No. The tool runs directly in your browser.