Water volume
Calculate a rectangular or cylindrical water column, or use a measured fill, account for displacement, then work out a chosen water-change amount.
Calculate water volume →Aquarium calculators
Use your measurements and costs. Each tool keeps its formula and assumptions alongside the result.
Electricity costs
Add your filter and pump wattage, lighting hours and the time your heater runs to estimate the electricity bill.
Estimate electricity →First-year setup cost
Separate initial purchases, recurring supplies and electricity using your own amounts.
Plan the first year →Filled aquarium weight
Add the water, empty tank, gravel, rocks and equipment. Include the stand separately and leave any weight you do not know blank.
Calculate filled weight →