Aquarium Water Volume & Filter Sizingeveryday

Aquarium Water Volume, Gravel Substrate & Filter Turnover Calculator

Calculate exact gross and net water capacity in Liters and US Gallons, required GPH / L/h filter flow rate (4x-6x turnover), and total filled weight on floor/stands.

Calculator Inputs

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cm
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cm
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cm
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Calculated ResultAquarium Water Volume & Filter Sizing

Net Usable Water Volume (Liters)

155L

Recommended Filter Flow Turnover (L/h)

775 L/h

Total Filled Tank Weight on Stand (kg)

222.4 kg

Detailed Calculation Breakdown

Gross Capacity
182.3 L
Net Water
155 L
Filter Flow
775 L/h

Calculation Methodology

Gross Volume (Liters) = (Length cm * Width cm * Height cm) / 1000. Net Water Volume = Gross Volume * 0.85 (displaced by gravel/decor). Filter GPH = (Net Gallons * 5).

Important Legal & Educational Disclaimer

A fully filled glass aquarium weighs approx 1.2 kg per liter (10 lbs per gallon) including glass pane, substrate gravel, and hardscape rocks.

This calculator is designed for educational and informational purposes only based on public statutory frameworks. The outputs do not constitute binding financial, tax, or legal advice. We assume no liability for decisions made based on these estimations. Always verify with the relevant official authorities or a certified professional advisor.

Frequently Asked Questions

Freshwater tropical community tanks require a filter turnover rate of 4 to 6 times the total tank volume per hour (e.g., a 200L tank needs a 1000 L/h filter).
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