is m(metre)^-3 = mm^3 ?
No,
mm stands for millimetres and m stands for metres
There are 1000mm in a metre
So that means there are 1000^2 mm^2 in a metre^2
and there are 1000^3 mm^3 in a metre^3
so
\(1,000,000,000 mm^3=1m^3\\ or\\ 1mm^3=10^{-9}m^3\)
No!.
1 m^-3=1×10^-9 mm^(-3) (reciprocal cubic millimeters)
