Tank volume calculator
Open the tool, see the formula and read the assumptions before using the result.
Use calculator →Choose the calculation you actually need
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Use one set of inputs across several calculations
The Aquarium Setup Planner combines water volume, water-change litres, a chosen filter-flow target, water mass and an electricity scenario into one copyable summary.
Open setup planner →A tank can have one advertised capacity but several useful working numbers: geometric volume, actual water volume, water-change amount, filter-flow target, substrate volume and total installation weight. The tools below keep those questions separate so one shortcut is not reused where it does not belong.
Water change calculator
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Use calculator →Aquarium weight calculator
Open the tool, see the formula and read the assumptions before using the result.
Use calculator →Substrate calculator
Open the tool, see the formula and read the assumptions before using the result.
Use calculator →Filter-flow calculator
Open the tool, see the formula and read the assumptions before using the result.
Use calculator →Electricity-cost calculator
Open the tool, see the formula and read the assumptions before using the result.
Use calculator →Partial-fill calculator
Open the tool, see the formula and read the assumptions before using the result.
Use calculator →Reverse dimensions calculator
Open the tool, see the formula and read the assumptions before using the result.
Use calculator →Stocking planning checklist
Open the tool, see the formula and read the assumptions before using the result.
Use calculator →Heater sizing reference
Open the tool, see the formula and read the assumptions before using the result.
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