Aquarium Volume Calculator
Calculate rectangular aquarium water volume from internal dimensions.
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What this tool does
Calculate rectangular aquarium water volume from internal dimensions. Displacement from rock, substrate and equipment is not deducted.
How to use the Aquarium Volume Calculator
- Enter or select internal tank length in in.
- Enter or select internal tank width in in.
- Enter or select actual water depth in in.
- Read the calculated result; change any measurement to compare alternatives.
Formula
US gallons=length(in)×width(in)×water depth(in)/231
- length
- Internal tank length (in, before metric conversion)
- width
- Internal tank width (in, before metric conversion)
- height
- Actual water depth (in, before metric conversion)
Displacement from rock, substrate and equipment is not deducted.
Worked example
For aquarium volume calculator, the following measurements illustrate the exact method: Internal tank length: 48; Internal tank width: 18; Actual water depth: 20.
Inputs
- Internal tank length48 in
- Internal tank width18 in
- Actual water depth20 in
Result
- Water volume74.81 gal
- Water volume (liters)283.17
Results explained
- Water volume
- Water volume from the formula above, expressed in gal before metric conversion. Displacement from rock, substrate and equipment is not deducted.
- Water volume (liters)
- Water volume (liters) from the formula above. Displacement from rock, substrate and equipment is not deducted.
Frequently asked questions
US gallons=length(in)×width(in)×water depth(in)/231
No. Individual animals differ. Consult your veterinarian before changing feeding or treatment, and seek immediate veterinary care for poisoning concerns.
Displacement from rock, substrate and equipment is not deducted.
Use current measured weight, actual food or product label values, and the dates or water readings requested. Check units before entering any value.
Verify if the animal is ill, pregnant, growing unusually, or on a special diet. Aquarium chemistry changes should be measured gradually and checked against product instructions.