Home Back

Aquarium Volume Calculator Gallons

Aquarium Volume Formula:

\[ V = L \times W \times H / 231 \]

inches
inches
inches

Unit Converter ▲

Unit Converter ▼

From: To:

1. What Is Aquarium Volume Calculation?

Aquarium volume calculation determines the water capacity of an aquarium in gallons. This is essential for proper stocking of fish, dosing medications, and maintaining water quality. The standard formula converts cubic inches to US gallons.

2. How Does The Calculator Work?

The calculator uses the aquarium volume formula:

\[ V = L \times W \times H / 231 \]

Where:

Explanation: The formula calculates the cubic volume of the aquarium and converts it to US gallons using the standard conversion factor of 231 cubic inches per gallon.

3. Importance Of Accurate Volume Calculation

Details: Knowing the exact volume of your aquarium is crucial for proper fish stocking levels, accurate medication dosing, calculating filter capacity, and maintaining appropriate water parameters.

4. Using The Calculator

Tips: Measure the inside dimensions of your aquarium in inches. Enter length, width, and height. All values must be positive numbers. For irregularly shaped aquariums, calculate sections separately and add them together.

5. Frequently Asked Questions (FAQ)

Q1: Why divide by 231?
A: 231 is the number of cubic inches in one US gallon, which is the standard conversion factor for volume calculations.

Q2: Should I include substrate and decorations in my calculations?
A: For accurate water volume, subtract the space taken by substrate, decorations, and other items that displace water.

Q3: How does aquarium shape affect the calculation?
A: This formula is for rectangular aquariums. Cylindrical, bow-front, or other shaped aquariums require different formulas.

Q4: What's the difference between US gallons and imperial gallons?
A: US gallons (231 cubic inches) are smaller than imperial gallons (277.42 cubic inches). This calculator uses US gallons.

Q5: How accurate is this calculation for real-world applications?
A: The calculation provides theoretical maximum volume. Actual water volume will be less due to substrate, decorations, and not filling to the very top.

Aquarium Volume Calculator Gallons© - All Rights Reserved 2025