Question

How can I report volumes in terms of liters or meters cubed?

Answer 1

L for liter.

Explanation:

The base unit for volume is the liter, and it is treated like any metric measurement.
1000 liters would be a kiloliter (kL)
.01 liters would be a centiliter (cL)
etc. etc,

Answer 2

You might use some form of `L` or some form of `m^3`.

If you use `L` (liters), it is the equivalent of using `dm^3` (decimeters cubed). If you use `mL` (milliliters), it is the equivalent of using `cm^3` (centimeters cubed). These are the more common variations.