What about substrate?

Sand or gravel displaces roughly 5-10% of the volume. Use the height minus substrate depth for a truer water value.

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Aquarium Volume Calculator

How many litres fit in a rectangular, cube or cylindrical fish tank. Subtract substrate for the real "water" volume.

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Shape

Length (cm)

Width (cm)

Height (cm)

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What about substrate?: Sand or gravel displaces roughly 5-10% of the volume. Use the height minus substrate depth for a truer water value.