Pet Care by the Numbers: Food Portions and Aquarium Volume
Get your pet's portions and habitat right — how to work out how much to feed a dog or cat, judge body condition, and measure an aquarium's true volume for safe, healthy stocking.
Aquarium Volume Calculator
Verified formula Updated Jun 2026 Private — runs on your device
Verified formula
Private
Volume
54.0
- US gallons
- 14.27
For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.
How to use the Aquarium Volume Calculator
The Aquarium Volume Calculator works out your volume, along with 1 related figure in an instant. Enter length, width and height and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.
- Enter the length.
- Enter the width.
- Enter the height.
- Read off your volume, together with us gallons — the calculator updates automatically, with no button to press.
Formula
The Aquarium Volume Calculator uses the formula:
Volume = Length × Width × Height ÷ 1000
Worked example
For example, with length of 60 cm, width of 30 cm and height of 30 cm, the volume is 54.0.
| Length | 60 cm |
|---|---|
| Width | 30 cm |
| Height | 30 cm |
| Volume | 54.0 |
|---|---|
| US gallons | 14.27 |
Results are estimates for educational use, not professional advice.
Key terms explained
- Volume
- The amount of three-dimensional space an object occupies, measured in cubic units.
Frequently asked questions
Multiply length × width × height in cm and divide by 1000 for litres. A 60 × 30 × 30 cm tank holds 54 litres.
Use the actual water depth, not the full tank height, since gravel and the gap at the top reduce the real water volume.
It guides how many fish you can keep, dosing of treatments and the right filter and heater size.
One US gallon is about 3.785 litres. The calculator shows the gallon figure alongside litres.
The Aquarium Volume Calculator uses the formula: Volume = Length × Width × Height ÷ 1000. For example, with length of 60 cm, width of 30 cm and height of 30 cm, the volume is 54.0.
Enter the length. Enter the width. Enter the height. Read off your volume, together with us gallons — the calculator updates automatically, with no button to press.
Related guides
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