Tank volume
Calculate gross volume and net water volume based on tank dimensions.
Tank shape
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Net volume (water)42.7L
Gross volume64.8L
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Water weight42.7kg
Freeboard4cm
Floor footprint0.18m²
Base area1,800cm²
Front area2,160cm²
Side area1,080cm²
Formula
V = L × W × H / 1000
Estimated total weight
Estimate the total weight of the fully set up tank including water, glass, and substrate.
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Estimated total weight209.5kg
Indicative load517kg/m²
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Net volume (water)122.4L
Water weight122.4kg
Estimated glass weight32.4kg
Substrate volume24.3L
Estimated substrate weight37.7kg
Hardscape weight12kg
Equipment weight5kg
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.
Liters to change36
Weekly liters36
Dilution factor0.7
Remaining after changes70%
Removed after changes30%
Formula
Remaining = (1 - change%) ^ number of changes
Dimension readout
A practical readout of volume, surface, and freeboard to interpret tank measurements.
V = L × W × H / 1000Rectangular
V = π × r² × H / 1000Cylindrical
Floor footprintUseful for stand, mat, and required space.
FreeboardHelps avoid overflow and estimate the real water level.
For shaped tanks or custom builds, use these numbers for preliminary sizing, not structural certification.