Aquarium Weight Calculator

Calculate the total weight of a filled aquarium including water, substrate, and decorations.

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How It Works

Water alone weighs 8.34 lbs per gallon — a 55-gallon tank holds over 458 lbs of water before adding anything else. Glass tanks weigh roughly double what acrylic tanks do. Always verify that your floor can support the total weight, especially on upper floors. A fully loaded 125-gallon tank can exceed 1,400 lbs.