Aquarium Capacity Calculator UK

Aquarium Capacity Formula:

\[ Litres = \frac{L \times W \times H}{1000} \]

Aquarium Capacity:

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What Is Aquarium Capacity?

Aquarium capacity refers to the total volume of water that an aquarium can hold, measured in litres. This calculation is essential for proper fish stocking, filtration system selection, and water treatment dosing.

2. How Does The Calculator Work?

The calculator uses the standard volume formula for rectangular aquariums:

\[ Litres = \frac{L \times W \times H}{1000} \]

Where:

\( L \) — Internal length of aquarium (cm)
\( W \) — Internal width of aquarium (cm)
\( H \) — Internal height of aquarium (cm)
1000 — Conversion factor from cubic centimeters to litres

Explanation: This formula calculates the internal volume of the aquarium in cubic centimeters and converts it to litres by dividing by 1000.

3. Importance Of Accurate Capacity Calculation

Details: Knowing your aquarium's exact capacity is crucial for maintaining proper water parameters, selecting appropriate filtration, determining correct fish stocking levels, and accurate medication dosing.

4. Using The Calculator

Tips: Measure the internal dimensions of your aquarium in centimeters. Ensure measurements are taken from the inside edges where water will actually be contained. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why measure internal dimensions instead of external?
A: Internal dimensions give the actual water volume, while external measurements include glass thickness and may overestimate capacity.

Q2: How does substrate affect actual water volume?
A: Gravel, sand, and decorations displace water, reducing the actual water volume by 10-20% depending on substrate depth.

Q3: What's the difference between UK and US gallons?
A: 1 UK gallon = 4.546 litres, while 1 US gallon = 3.785 litres. This calculator provides results in litres for accuracy.

Q4: Can this calculator be used for irregularly shaped aquariums?
A: No, this calculator is designed for rectangular aquariums. Bow-front or cylindrical tanks require different formulas.

Q5: How much should I understock my aquarium?
A: For beginners, stock to 80% of calculated capacity to allow for biological load and water parameter stability.