It's not a strange assumption to make, given how the prefix system works for true SI units. The litre/liter is defined as a decimeter cubed, or 0,1 m^3. It is a

It's not a strange assumption to make, given how the prefix system works for true SI units. The litre/liter is defined as a decimeter cubed, or 0,1 m^3. It is a metric unit, but not SI. Still, it is allowed within the SI system...