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Health Calculator

Body Mass Index (BMI) Calculator

Calculate your Body Mass Index (BMI), healthy weight range, and body composition status in Metric or Imperial units.

Your Measurements
Your Calculated BMI
22.9Normal / Healthy Weight
18.525.030.0
Healthy Weight Range for Your Height:

57 kg — 76 kg

BMI Categories
Underweight: < 18.5
Normal: 18.5 – 24.9
Overweight: 25 – 29.9
Obese: ≥ 30.0
Documentation

About BMI Calculator Free — Body Mass Index & Healthy Weight Range

The Free BMI Calculator provides a quick assessment of body mass index for adults. Determine whether your weight falls into a healthy range based on height.

Key Features & Capabilities

  • Supports Metric (cm/kg) and Imperial (ft/in/lbs) units
  • Visual color-coded BMI gauge bar
  • Calculates healthy weight range for your height
  • Displays Underweight, Normal, Overweight, and Obese categories
  • Private and browser-based

How to Calculate Your BMI

01

Choose Unit System

02

Enter Height and Weight

03

View Health Status

Frequently Asked Questions

What is a healthy BMI range?

A healthy BMI for adults is generally between 18.5 and 24.9.

Is BMI accurate for athletes?

BMI does not distinguish between muscle mass and fat mass, so muscle-heavy individuals may receive higher scores.

Related Utility Tools

Security & Privacy Pillars

Why Zaeyon?

Private, free, and browser-based — no account, no uploads, no compromises.

Zero Uploads

Your files never leave your device. All processing happens locally in your browser memory — nothing is sent to any server.

100% Free Forever

No subscriptions, no hidden fees, no daily limits. Every tool on Zaeyon is permanently free to use without an account.

Instant & Powerful

Powered by WebAssembly — the same low-level technology used in native apps — so processing is fast even for large files.

Works Offline

Once the page loads, the WebAssembly engine runs entirely on your device. No internet connection needed to process files.

Works Everywhere

No software installation required. Runs directly in your browser on Windows, Mac, Linux, iOS, and Android.