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Calculators

BMI Calculator

Check your BMI, weight category and healthy weight range in metric or imperial units.

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Clinical Health & Weight Intelligence

Calculate your body mass index (BMI)

Accurate WHO classification, healthy target weight ranges, animated gauge meter, and basal metabolic rate (BMR) insights.

Quick Profiles
Your Measurements
kg
cm
Normal / Healthy WeightWHO Standard Scale
22.9Optimal balance associated with lowest health risk and mortality.
Healthy Range for Your Height56.7 kg – 76.3 kg
Great job! Your current weight is right in the ideal healthy BMI bracket.

WHO Standard BMI Classifications

International World Health Organization adult clinical body mass categories.

Severe Thinness< 16.0
Moderate Thinness16.0 – 16.9
Mild Thinness17.0 – 18.4
Your Tier
Normal / Healthy Weight18.5 – 24.9
Overweight (Pre-obese)25.0 – 29.9
Obese Class I30.0 – 34.9
Obese Class II35.0 – 39.9
Obese Class III (Morbid)40.0+

Note: BMI is an anthropometric screening indicator. Highly muscular athletes, pregnant individuals, and older adults should consult a healthcare provider for comprehensive body composition testing.

How it works

How to use BMI Calculator

  1. Step 01

    Choose Metric (kg, cm) or Imperial (lb, ft/in) units.

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  2. Step 02

    Enter your weight and height, and optionally your age and gender.

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  3. Step 03

    See your BMI, its category on a color-coded scale and the healthy weight range for your height.

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Features

Why you'll love this tool

  • 01

    Metric & imperial

    Switch between kg/cm and lb/ft/in. Your values convert automatically.

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  • 02

    Color-coded scale

    See where you sit across underweight, normal, overweight and obese.

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  • 03

    Healthy weight range

    Get the target weight range for your height and how far you are from it.

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  • 04

    Private by design

    Your health data never leaves your device.

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FAQ

Frequently asked questions

BMI = weight (kg) ÷ height (m)². In imperial units, BMI = 703 × weight (lb) ÷ height (in)².

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