# How do you convert mg to g?

$1 \cdot m g$ $\equiv$ ${10}^{-} 3 \cdot g$, i.e. 1/1000""th of a gram.
The $\text{milli}$ prefix means $\times {10}^{-} 3$
$1 \cdot m L = {10}^{-} 3 \cdot L$