Volume of a cylinder: liquid vs solid Apologies if this question is too much high school maths for the site, I'm a refugee from the webmaster stack site, and thought I might find some help here. 
The question concerns candle making (in the real world). I'm thinking of purchasing some large pillar candle moulds from a company in Australia (can't find the right size anywhere else) and I need to check that I can melt enough wax to fill a single mould in one go and if not figure out what size boiler I should buy. 
Problem is wax is sold in dry weights and the volume is calculated in, well, liquid volume. I don't know how to translate between the two.


*

*Volume is V =
πr2h.

*Mould is 100mm diameter and 241mm tall

*= 7574285.714285708 Cubic millimeters

*= 7.574285714 cubic liters.


So, the problems are these:


*

*Basically the result doesn't make complete sense to me - it shouldn't be that large! Have I done the conversion incorrectly or is there a difference that I'm unaware of between American and British volume calculations (I'm a Brit).

*Candle wax is sold in dry kilograms, I've seen various conversion charts online, but they often seem to be guess work. Is there a simple formula for converting a dry weight of a solid into it's resulting liquid volume.


Apologies if this is too simple or the solution is obvious, and thanks in advance for your help.

As pointed out in comments, the computation is off by $4$ due to the diameter being twice the radius. A cylinder of radius $50/1000$ meters and height $241/1000$ meters has volume of about $1.89$ liters. Using the wax density  of $930$ kg/L yields $1.76$ kg. 
By the way, "cubic liters" is incorrect since a liter is a measure of volume. 
