Correct Bmi Standard. ‘fifth, we were unable to use standard bmi categories for underweight (who threshold <18.5 kg/m 2 ), as this only included 2.69% and. Racial and ethnic disparities persist.
It is calculated by taking a person's weight, in kilograms, divided by their height, in meters squared, or bmi = weight (in kg)/ height^2 (in m^2). The standard weight status categories associated with bmi ranges for adults are shown in the following table. Guidelines recommend that all adults keep their bmi between 18 and 24.9.