Aquarium Calculators.

Aquarium calculators for tank volume, glass thickness, and stocking — plan a safe, healthy setup with free, accurate tools.

4 calculators in this category

Free to use, no login required

Compare the two aquarium stocking rules on your tank — 1 inch...

Work out how much aquarium gravel, sand or aquasoil you need from...

Work out aquarium volume in litres or gallons for six tank shapes,...

Work out the glass thickness an aquarium needs from its length, height...

Need something custom?

Send a request with the formula and the kind of inputs you need. Most reader-requested calculators ship within 2 weeks.