# What measurement is in a gram per milliliter?

Typically, this specifies a measurement of $\text{density}$.
And $\text{Density}$ $=$ $\text{Mass"/"Unit volume}$ $=$ $\frac{g}{m {L}^{-} 1}$, or $g \cdot c {m}^{-} 3$. For chemists, units of $c {m}^{3}$ and $m L$ are a lot more useful than $\text{cubic metres}$, which is a huge volume.