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Cylindrical Tank Volume Formula:
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The Fish Tank Sizes Calculator estimates the volume of cylindrical fish tanks in gallons based on diameter and height measurements. This helps aquarists determine appropriate tank sizes for their fish and calculate water treatment requirements.
The calculator uses the cylindrical volume formula:
Where:
Explanation: The formula calculates the volume of a cylinder and converts it from cubic inches to US gallons using the standard conversion factor.
Details: Accurate volume calculation is essential for proper fish stocking, determining filter capacity, calculating medication dosages, and maintaining optimal water chemistry in aquariums.
Tips: Enter diameter and height in inches. Measure the inside dimensions of the tank for accurate results. All values must be positive numbers.
Q1: Why divide by 231 in the formula?
A: 231 cubic inches equals 1 US gallon, so this conversion factor transforms the volume from cubic inches to gallons.
Q2: Can I use this for rectangular tanks?
A: No, this calculator is specifically for cylindrical tanks. Rectangular tanks use Length × Width × Height / 231.
Q3: Should I include the tank thickness in measurements?
A: No, use interior dimensions only for accurate water volume calculation. Exterior measurements will overestimate the actual water capacity.
Q4: How accurate is this calculation for actual water volume?
A: This gives theoretical maximum capacity. Actual water volume will be less due to substrate, decorations, and not filling to the very top.
Q5: What's the recommended tank size for beginner fishkeepers?
A: Generally, 20-30 gallon tanks are recommended for beginners as they provide more stable water parameters than smaller tanks.