BMI (Body Mass Index) is a simple formula that uses height and weight to estimate whether a person falls into an underweight, normal weight, overweight, or obese category. While it is widely used in medicine and public health as a screening tool, BMI has significant limitations — it does not distinguish muscle from fat, or account for age, gender, or ethnicity differences in body composition.
CalcPlanet – Free Online Calculators
725+ free calculators and 108 tools for math, money, health, and everyday life. Instant results, verified formulas, no sign-up.
By CalcPlanet Editorial · Reviewed against our Editorial Standards and Formula Sources.
CalcPlanet calculators are free, privacy-first, and formula-reviewed.
Editorial Standards · Formula Sources · Privacy · Terms · Contact
