Health & Fitness
BMI Calculator
Calculate body mass index (BMI) from weight and height. BMI is a screening measure, not a diagnosis.
How to use the bmi calculator
Calculate body mass index (BMI) from weight and height. BMI is a screening measure, not a diagnosis. Enter the requested values and select Calculate result. Check the units and options before interpreting the answer.
Formula and calculation method
BMI = weight in kilograms ÷ (height in metres)².
Worked example
At 70 kg and 1.75 m, BMI is approximately 22.9.
Limitations and interpretation
Results depend on inputs, assumptions and rounding. Verify results before using them for consequential decisions. Health estimates are not medical diagnoses.
Frequently asked questions
Does BMI measure body fat directly?
No, it does not distinguish fat from muscle.
Is BMI a diagnosis?
No, it is a screening measure.