Aquarium Tools

Volume calculators and tools for aquarium owners and fish keepers.

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

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

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

Calculate the volume of a 6-sided hexagonal fish tank. Supports flat-back and regular hexagon shapes.

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