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✦ New Tool

BMI Calculator Pro

Calculate your Body Mass Index using metric or imperial units. See your BMI category, healthy weight range, and personalized health insights.

Your BMI

22.9

Category

Normal weight

Underweight
< 18.5 Normal
18.5–24.9 Overweight
25–29.9 Obese
≥ 30

Healthy weight range for your height:

56.7 kg – 76.6 kg

Why Use This Tool

Benefits of Using BMI Calculator

⚖️

Instant Calculation

Calculate your precise Body Mass Index instantly as you type your height and weight.

📏

Unit Support

Seamlessly toggle between Metric (kg/cm) and Imperial (lbs/ft/in) unit systems.

🎯

Healthy Range

View the ideal, healthy weight range customized for your specific height.

🔒

Total Privacy

Your sensitive health data never leaves your device. All calculations are 100% local.

Quick Start

How to Use This Tool

1

Choose System

Select your preferred measurement system: Metric or Imperial.

2

Enter Weight

Input your current weight in kilograms or pounds.

3

Enter Height

Input your current height in centimeters, or feet and inches.

4

View Results

Instantly view your BMI score, category, and healthy weight range on the visual scale.

Applications

Common Use Cases

🏃‍♂️

Fitness Tracking

Monitor your BMI over time to track your progress during a weight loss or muscle gain journey.

🏥

Health Screening

Use BMI as an initial screening tool to identify potential weight-related health risks.

📋

Medical Forms

Quickly calculate your BMI when filling out medical history forms or insurance applications.

Related Guides

Comparisons

M Muhammad Numan Usmani

Muhammad Numan Usmani

Founder & Developer at NumanX Studio

About GitHub X

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Frequently Asked Questions

BMI (Body Mass Index) is a measure of body fat based on height and weight. It is calculated by dividing weight in kilograms by the square of height in meters. While not a direct measure of body fat, it's a useful screening tool for weight categories.
BMI = weight (kg) / height² (m²). For imperial units: BMI = (weight in lbs / height² in inches) × 703. This tool handles both unit systems for you.
A healthy BMI range is 18.5 to 24.9. Below 18.5 is underweight, 25.0–29.9 is overweight, and 30.0 or above is obese. These ranges apply to most adults 18–65 years old.
BMI is a screening tool, not a diagnostic one. It may not be accurate for athletes with high muscle mass, pregnant women, the elderly, or children. For these groups, additional measurements may be needed.
No. All calculations happen locally in your browser. Your height, weight, and BMI information never leaves your device.