Aquarium Weight Calculator
A full tank is heavy. Add up the water, substrate, glass and decor to see the total weight that your stand and floor have to carry.
- Free
- Works offline after your first visit
- Saves on this device
- No sign-up
- Updated
How it works
Water weighs about one kilogram for each litre, so the water weight is the tank volume times that. Add the weight of the substrate, the glass and frame, and the rock, decor and equipment you enter.
Weigh a bag of substrate or a rock if you want a real figure. Then check the total against your stand's rated load.
Worked example
A tank that holds 75 gal with 100 lb of substrate weighs about 926 lb when full, counting the water.
Questions
How do I know if the stand can take it?
Check the stand's rated load and the floor it sits on. This page gives the total only, not a judgment of either.
Why does the full weight matter?
A full tank can weigh several times an empty one, so a stand that suits the empty tank may not suit the full one.
How close is the water figure?
Water weighs a little less when warm, so the estimate is close enough for planning.
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