Bow Front Fish Tank Volume Calculator - Calculate volume in litres, gallons, cubic feet, bbl, cubic meters

Tank Volume (m³):

Tank Volume (U.S. Gallons):

Tank Volume (Imp. Gallons):

Tank Volume (Liters):

Tank Volume (Cubic Feet):

Tank Volume (bbl):

Volume Calculation

The volume of a bow front tank can be calculated using the following formula:

\[ \text{Square Area} = l \times w \]

\[ \text{Elliptical Area} = \pi \times \left(\frac{l}{2}\right) \times \left(\frac{fw - w}{2}\right) \]

\[ \text{Tank Volume} = (\text{Square Area} + \text{Elliptical Area}) \times h \]

Where:

Why is the elliptical area included in the calculation?
The elliptical area accounts for the curved front of the bow front tank, which extends beyond the rectangular base. This ensures the calculated volume accurately reflects the tank’s shape.

How do you measure the full width fw of the tank?
Measure the widest point of the tank, including the bow. This is typically done by measuring across the tank's front face at its broadest part.

Can this formula be used for tanks with irregular bow shapes?
This formula assumes a smooth elliptical bow. For irregular shapes, approximate the bow as an ellipse, or divide the bow into smaller measurable sections and calculate their areas separately.

What unit consistency should be maintained for the formula?
Ensure all measurements (length, width, and height) are in the same unit (e.g., meters, centimeters) to get the volume in the corresponding cubic unit (e.g., cubic meters, cubic centimeters).

How can you adjust the formula for partial fill volumes?
For partial fill volumes, calculate the height of the filled section and apply the same formula using the adjusted height value for h. Additionally, consider the shape of the liquid surface if the tank is tilted.