BMI Calculator
Calculate your Body Mass Index with imperial (lbs, ft/in) or metric (kg, cm) units. Includes category and WHO classification.
Enter your details
Inches if imperial, centimeters if metric
Pounds if imperial, kilograms if metric
Result
Enter your details on the left, then press Calculate.
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Frequently asked questions
Is BMI accurate for everyone?
BMI is a population-level screening tool, not a diagnostic measure. It can over-estimate body fat in muscular athletes and under-estimate it in older adults who have lost muscle mass. Talk to a clinician for an individualized assessment.
What is a healthy BMI range?
The WHO defines 18.5 – 24.9 as the normal-weight range for adults. Below 18.5 is underweight, 25.0 – 29.9 is overweight, and 30 or higher is obese. These thresholds are based on adult populations and don't apply to children or pregnant women.
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