Aquarium Volume Calculator
Find your aquarium’s volume.
Result
How to use
- Enter your values in the fields above.
- Press Calculate to see your result instantly.
- Use the Share button to copy a link to your result.
About this calculator
This calculator finds an aquarium's water volume in liters and gallons from its length, width, and height, using the simple box formula volume = length × width × height, then converting to the units fishkeepers actually shop and dose by.
Aquarium hobbyists use it to size a new tank, calculate how much water a water change involves, and work out correct dosing for medications, fertilizers, or dechlorinator (most products are dosed per liter or per gallon). It also helps when choosing a filter or heater rated for a specific tank volume.
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