BMI Calculator
Calculate Body Mass Index (BMI) and discover your ideal healthy weight range.
Your BMI
Category
BMI Scale
Under 18.518.5–24.925–29.930–39.940+
UnderweightNormalOverweightObeseExtreme
⚠️ BMI is a screening tool, not a diagnostic measure. Consult a healthcare professional for medical advice.
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How to Use BMI Calculator
Follow these quick and easy steps to use our free online BMI Calculator directly in your browser:
1
Select Unit System
Choose Metric (cm / kg) or Imperial (feet, inches / lbs).
2
Enter Height & Weight
Type your height and current body weight.
3
View BMI & Category
See your score, WHO category classification, and healthy weight recommendations.
Features & Capabilities
⚖️
Metric & Imperial
Seamlessly switch between cm/kg and feet/inches/lbs.
🏥
WHO Standards
Categorized into Underweight, Normal weight, Overweight, and Obese.
🎯
Ideal Weight Range
Calculates your recommended target healthy weight span.
Privacy & Security Guarantee
Your privacy and document security are our highest priority. BMI Calculator executes all processing, calculations, and conversions entirely on your client device using local browser memory. Your files, inputs, and personal parameters are never uploaded to any remote server or stored in any database.
Frequently Asked Questions
What is a healthy BMI range?
According to the World Health Organization (WHO), a BMI between 18.5 and 24.9 is considered normal/healthy for adults.
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