The aquarium weight calculator allows you to know exactly what your aquarium weighs.
Simply enter your Aquariums dimensions(in inches), how thick your tanks panes are(in millimeters), as well as how deep your sand bed is. All on the left.
You will then get the following answers:
Total Gallons
Water weight
Sand Weight(using loose, medium grade sand)
Weight of bare aquarium, both for acrylic and glass.
Total weight.

 ENTER TANK DIMENSIONS IN INCHES
ENTER TANK THICKNESS IN MILLIMETERS

                                                    
Length   Gallons In Aquarium
Width   Weight of Acrylic Aquarium
Heigth   Weight of Glass Aquarium
Aquarium thickness (in mm)   Weight of Water
Inches of Sand   Weight of Sand
    Total Weight of Acrylic Aquarium
    Total Weight of Glass Aquarium