Why does BMI have units of kg/m^2 when we are three dimensional? Wouldn’t kg/m^3 or g/cm^3 be more accurate?

Question

Why does BMI have units of kg/m^2 when we are three dimensional? Wouldn’t kg/m^3 or g/cm^3 be more accurate?

In: 100

Answer 1

All this answer miss the point: the BMI *is* a measure of density, just the superficial density.

In other words it measure the average density of the slices that stacked together makes us. The higher the density of the slice the larger we are.