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Volume & Water Weight Calculator

Connecting fish breeders with hobbyists across the U.S.

Aquarium Volume & Water Weight

Optional: Estimate empty tank weight (glass/acrylic)

Uses panel areas (front/back/sides + bottom) × thickness. Top braces/lids are not included. For estimates only.

Enter tank dimensions and click Calculate to see volume, water weight, and optional empty tank weight.

Assumptions: 1 L = 0.264172 US gal; water ≈ 1.0 kg/L (≈ 8.345 lb/gal). Empty tank weight uses material density and thickness for an estimate.