Elliot has a modern fish tank that is in the shape of an oblique prism, shown below

Just remember that such tanks are not appropriate for keeping fish, and in some countries, they're even forbidden!

Is your aquarium in a custom or bizarre shape? Check out our other tools, such as the triangular prism volume or spherical cap calculator, which can find water volume for spherical aquariums, also called fish bowls. Tan(β) = 0.5 × length / (full_width - width).įor the aquarium with a bow front intended to stand in the corner, the formula is:Ĭorner bowfront = (0.5r² × (α - sin(α)) × height)/2 You can calculate the angle α with α = 2π - 4β, where β is an angle expressed as: Where α is the central angle of the circular segment, in radians, and r is a radius of a circle. You need to have given four dimensions: height, width, length, and the full width of the aquarium, and then you can derive the final formula:īowfront = height × width × length + 0.5 × r² × (α - sin(α)) × height, It's handier to use radius instead of diameter in this last case: diameter = 2 × radius.Ĭalculating the volume of the bowfront aquarium is a bit trickier. Quarter cylinder = π × radius² × height / 4 To determine the volume of the quarter of the cylinder, take a fourth part of the full volume: Half cylinder = π × (diameter / 2)² × height / 2

Your fish tank is a half-cylinder? No problem, just divide the formula above by 2: If you want to calculate the water volume of a cylindrical aquarium, use the formula for cylinder volume: Our cube calculator can help you calculate this volume easily. The cube-shaped aquarium has the easiest volume equation – simply raise the edge length to the third power: Our rectangular prism calculator will make this calculation simple. To find the volume of a standard aquarium, calculate the volume of a rectangular prism (also called the volume of a box):

If you want to calculate the aquarium size manually, you can use the different formulas for volume, depending on the tank shape.

Elliot has a modern fish tank that is in the shape of an oblique prism, shown below