Aquarium Calculators?

Anyone know of any sites that have on-line calculators to determine both liquid volume and weight when full for Aquariums?
Answers:
Yeah there are a few sites out there, but I like this one the best. It gives you both capacity and weight when full, but this will only measure in inches.

http://www.aquariumlife.net/galcalc.asp.

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everyone uses the same standards when making aquariums, if you will give us the dimensions, we can tell you the capacity

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Length X Breadth X Height (Cms) divided by 1,000 gives you capacity of the tank in litres.

1 litre = 1 Kg or 8.3 pounds per gallon.
Capacities of common tanks
18x10x10 = 30 litres or 6 gallons. with gravel and other accessories weighs nearly 60 Kgs.
24x12x12 = 60 litres or 11 gallons. (85 to 90 kgs)
24x12x15 = 72 litres or 15 gallons. 110 to 120 kgs).

Never try and move a tank with water inside it will break.