BMI Calculator
Determine your BMI and understand your health classification.
Fast. Local. Effortless.
Manage your sensitive files with zero uploads. Everything happens directly in your browser.
Enter Height
Provide your height in centimeters or feet/inches.
Enter Weight
Provide your weight in kilograms or pounds.
Get BMI
See your calculated BMI score and health category (e.g., Normal, Overweight).
Specialized Workflows & Use Cases
Tailored browser-based workflows designed for specific industry needs and compliance standards.
Online BMI Calculator for Lawyers
BMI Calculator for Lawyers - private & secure online processing in your browser. Zero server uploads, no limits.
100 Percent Local BMI Calculator for Lawyers
BMI Calculator for Lawyers - private & secure 100 percent local processing in your browser. Zero server uploads, no limits.
Browser Based BMI Calculator for Lawyers
BMI Calculator for Lawyers - private & secure browser based processing in your browser. Zero server uploads, no limits.
No Server Upload BMI Calculator for Lawyers
BMI Calculator for Lawyers - private & secure no server upload processing in your browser. Zero server uploads, no limits.
Secure BMI Calculator for Lawyers
BMI Calculator for Lawyers - private & secure secure processing in your browser. Zero server uploads, no limits.
Online BMI Calculator for Accountants
BMI Calculator for Accountants - private & secure online processing in your browser. Zero server uploads, no limits.
100 Percent Local BMI Calculator for Accountants
BMI Calculator for Accountants - private & secure 100 percent local processing in your browser. Zero server uploads, no limits.
Browser Based BMI Calculator for Accountants
BMI Calculator for Accountants - private & secure browser based processing in your browser. Zero server uploads, no limits.
Health Metrics
Privacy First
Frequently Asked Questions
Everything you need to know about our private, browser-based file tools.
Still have questions? Contact us or check our How it Works page.
What Is BMI?
Body Mass Index (BMI) is a numerical value calculated from a person's weight and height, used as a screening tool to categorize weight status. Formula: BMI = weight (kg) / height² (m²). It's the most widely used initial assessment of healthy weight range by healthcare providers globally.
BMI Categories (WHO Standard)
- Below 18.5: Underweight
- 18.5 – 24.9: Normal weight
- 25.0 – 29.9: Overweight
- 30.0 – 34.9: Obesity Class I
- 35.0 – 39.9: Obesity Class II
- 40.0 and above: Obesity Class III (Severe)
For South Asians, research suggests health risks begin at lower BMI values — some guidelines use 23.0 as the overweight threshold for people of Indian, Pakistani, and Bangladeshi heritage.
BMI Limitations
BMI is a screening tool, not a diagnostic one. It doesn't account for muscle mass (athletes may have high BMI without excess fat), bone density, age-related changes in body composition, or fat distribution (where fat is stored matters as much as how much). Use BMI as one data point alongside waist circumference, body fat percentage, and medical advice.
Related Tools
Use the Unit Converter to convert between lbs/inches and kg/cm before calculating.