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Frequently Asked Questions

How do I measure a Hexagon tank?

Measure the length of one side panel (if it is a regular hexagon) and the height. If it is a 'flat back' hex, calculations may vary, but this tool assumes a regular shape.

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Aquarium Volume Calculator (Gallons & Liters)

Calculate the water volume of your fish tank in US Gallons, UK Gallons, and Liters. Supports Rectangle, Cube, Cylinder, Bowfront, and Hexagon shapes.

Bowfront Aquarium Volume Calculator

Calculate gallons and liters for Bowfront (curved front) aquariums. Accurate volume estimation for unique tank shapes.

Cylinder Aquarium Volume Calculator

Determine the water volume of cylindrical or column fish tanks. Calculate gallons from diameter and height.

Cube Aquarium Volume Calculator

Simple calculator for cube-shaped tanks. Enter one side length to get US Gallons, Liters, and water weight.