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.






