Volume & dimensions
Volume, weight & dimensions
Calculate aquarium gross and net volume, full tank weight, useful dimensions, and water change liters with precision.
Tank volume
Calculate gross volume and net water volume based on tank dimensions.
Results
Formula
V = L × W × H / 1000
Estimated total weight
Estimate the total weight of the fully set up tank including water, glass, and substrate.
Results
The load estimate is indicative: always verify the stand, support, and floor before setting up heavy tanks.
Water change
Calculate the liters to replace for a partial water change and the dilution factor.
Results
Formula
Remaining = (1 - change%) ^ number of changes
Dimension readout
A practical readout of volume, surface, and freeboard to interpret tank measurements.
Results
For shaped tanks or custom builds, use these numbers for preliminary sizing, not structural certification.
Aquarium volume, weight, and dimension calculator
Use these tools to estimate gross and net liters, the real weight of a full tank, floor footprint, and water changes. The formulas consider glass, substrate, water column, and hardscape displacement to get closer to usable volume.
Scientific references
- Archimedes' principle — buoyant force
- Freshwater density ≈ 1.000 g/cm³, saltwater ≈ 1.025 g/cm³