Both really. 1000 mL is 1 L so the water can be expressed in either form but usually in Liters.
a bath tub is a milliliter because a liter is the size of a water bottle
You measure liquid volume in litres and ml.
You would measure it in litres
The capacity of a bathtub could be appropriately measured in liters.
Liters
Litres is better to measure quantities larger than a quart.
ml 1 liter = 1000 ml 1 ml = 0.001 L
There are 0.001 liters in a milliliter.
The most appropriate unit of measurement to measure the capacity of a bathtub is liters (L) or gallons (gal). These units are commonly used to measure volumes of liquids, which is relevant to the amount of water a bathtub can hold. Cubic meters (m^3) could also be used for larger bathtubs or industrial applications where a greater volume is needed.
A milliliter is already a volume measurement. Cubic milliliter is not a proper term for volume.A cubic millimeter can be used for volume, though.A cubic millimeter = 10-6 liters or 0.000001 liters.A milliliter = 10-3 liters or 0.001 liters.
Liters is the appropriate unit. Milliliter can also be used.
liters 1 liter = 1000 ml 1 ml = 0.001 L