Free Online BMI Calculator
Calculate Body Mass Index (BMI) using metric (kg/cm) or imperial (lbs/inches) units with WHO category classifications.
Your Body Mass Index
22.9
Normal Weight
18.5
25.0
30.0
Healthy adult BMI ranges from 18.5 to 24.9 kg/m² according to WHO standards.
Client-Side Processing: All financial and personal inputs remain private in your browser.
Formula & Calculation Method
Metric: BMI = weight (kg) / [height (m)]^2 | Imperial: BMI = 703 * weight (lbs) / [height (in)]^2
Assess your weight category according to World Health Organization (WHO) benchmarks for adults. Instant calculation supporting both kilograms/centimeters and pounds/inches.
Other Calculators You May Need
Age Calculator
Calculate exact chronological age in years, months, days, hours, and minutes with next birthday countdown.
Date Calculator
Add or subtract days, weeks, months, and years to or from any calendar date.
Date Difference Calculator
Calculate the exact number of days, weeks, months, and business days between any two calendar dates.
Time Duration Calculator
Add, subtract, and calculate duration between hours, minutes, seconds, and time intervals.