Unit System
Your Measurements
Optional Details
Live Results
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Enter your height and weight
Your BMI result will appear here instantly

How the Tool Works

Everything runs entirely in your browser — no data is uploaded or stored anywhere.

Step 01

Choose Your Unit System

Switch between Metric (kg/cm) and Imperial (lb/ft/in) with a single click — all inputs update immediately.

Step 02

Enter Height & Weight

Type in your measurements. The result panel on the right updates in real time as you type — no button press needed.

Step 03

Read Your BMI Result

Your BMI score, category, healthy weight range, and a colour-coded gauge are displayed instantly so you can understand where you stand.

Step 04

Save or Share

Hit "Save Results" to download a clean summary. No account, no subscription, no data sent anywhere.

How It Helps You

Understand your body composition at a glance — no maths, no guesswork.

Instant Calculation

Results appear as you type. No waiting, no form submissions — just immediate feedback.

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Completely Private

Your measurements never leave your device. Nothing is collected, logged, or transmitted.

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Metric & Imperial

Switch between kg/cm and lb/ft/in any time. Works for every country and preference.

📊

Visual Gauge

A colour-coded bar shows exactly where your BMI sits across all four WHO categories.

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Healthy Range Guide

Instantly see what weight range would put you in the healthy BMI zone for your height.

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Free, Always

No trials, paywalls, or hidden tiers. Free to use without limits, forever.