Aquarium Volume & Tank Size Calculator
Calculate exact water capacity for rectangular, bowfront, cylinder, and hexagonal fish tanks. Deducts substrate displacement, calculates filled aquarium stand weight, and suggests filtration turnover (GPH) and heater sizing.
Tank Shape & Dimensions
Recommended Equipment Specs
How to Use Aquarium Volume & Tank Size Calculator
Select Tank Shape or Preset
Choose Rectangle, Bowfront, Cylinder, or pick a standard preset like 10 Gal, 29 Gal, or 55 Gal.
Input Dimensions & Substrate
Enter length, width, and height in inches or cm with substrate bed depth.
Inspect Equipment Specs
Check net water volume, filled stand weight, recommended heater wattage, and filter GPH.
Frequently Asked Questions
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