Aquarium volume calculator
Work out your tank’s real water volume from its dimensions, minus the substrate and the gap below the rim.
Actual water168 l44.4 gal
Glass volume200 l
Water weight168 kgfresh · 172 kg salt
How it’s calculated
Glass volume is length × depth × height. Actual water subtracts the substrate and the unfilled gap. Rocks and decor take away another 5 to 15 %.