BMI Calculator
Calculate Body Mass Index Online.
Your Body Measurements:
Your Body Mass Index
21.6
Normal Weight
Underweight
Normal
Overweight
Obese
Healthy BMI Range:
18.5 kg/m² - 24.9 kg/m²
Healthy Weight Range:
59.9 kg - 80.7 kg
Ponderal Index:
12.0 kg/m³
Your weight is in the healthy range for your height. Great job!
WHO BMI Classification Categories:
< 18.5: Underweight
18.5 – 24.9: Normal Weight
25.0 – 29.9: Overweight
≥ 30.0: Obesity Class I-III
How to BMI Calculator Online for Free
1
Select your files
Click the Upload button or drag & drop your files into the upload box.
2
Configure options
Adjust specific settings, arrange file order, or make edits in the interactive preview.
3
Save & Download
Click the BMI Calculator button to finish and download your file instantly.
Frequently Asked Questions
Is using BMI Calculator safe and private?
Yes, 100%! All file processing takes place right inside your browser using client-side WebAssembly and JavaScript. Your files are never uploaded to any remote server or stored in the cloud.
Is there any fee or file limit?
No. SemrushAI PDF Tools is completely free to use with unlimited operations. There are no subscriptions, paywalls, or hidden charges.
Can I use this on mobile phones or Mac?
Absolutely! The tool runs smoothly on any modern web browser across Windows, macOS, Linux, Android, and iOS.