Body Metrics
BMI Calculator
Calculate your Body Mass Index (BMI) and see where you fall on the WHO classification.
How the BMI calculator works
Calculate your Body Mass Index (BMI) and see where you fall on the WHO classification.
Every result on MacroMatrixCalc is based on peer-reviewed equations and adjustable for goal, sex, age and activity. Use the form above to update your numbers — results recalculate instantly so you can compare scenarios.
Frequently asked questions
Less so. Muscular individuals often exceed 25 BMI without excess fat.
Recommended products
Curated supplements and gear for this calculator will appear here soon.