BMI Calculator
UtilitiesCalculate your Body Mass Index (BMI). Check if you're underweight, normal, overweight, or obese.
How to use BMI Calculator
- 1Enter your input in the text area above
- 2Click the action button to process your data
- 3View the result and copy it to your clipboard
Common Use Cases
Quick Processing
Process your data quickly and efficiently.
Secure & Private
All processing happens in your browser.
Free to Use
This tool is completely free with no signup.
Mobile Friendly
Works on any device with a browser.
Frequently Asked Questions
What is BMI?
BMI (Body Mass Index) is a measure of body fat based on height and weight. Formula: BMI = weight(kg) / height(m)Β². Categories: Underweight (<18.5), Normal (18.5-24.9), Overweight (25-29.9), Obese (30+). It's a screening tool, not a diagnostic of body fatness.
Is BMI accurate?
BMI is a useful population-level screening tool but has limitations: it doesn't distinguish between muscle and fat (athletes may have high BMI but low body fat), doesn't account for fat distribution, and varies by age/sex. Use it as a starting point, not a definitive health assessment.
What's a healthy BMI range?
WHO recommends BMI 18.5-24.9 as normal/healthy. However, optimal BMI varies: older adults may benefit from slightly higher BMI (25-27), while some ethnic groups (Asians) have health risks at lower BMI (23+). Consult your doctor for personalized advice.
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