Hi.
 I have just recently converted the engine of theTintent on run on LPG and
have fitted the largest tank I could find that would be able to provide a
decent mpg but I would like to determine the volume of the cylinder as I do
not believe the plate stamped with the tanks details is correct, the problem
is that my math is not that hot and whilst I'm OK with the volume of a
cylinder I am at a loss to calculate the volume plus the domed ends ( if
they were two halves of a sphere it would be no problem but they are not ).
Can any of you mathematicians out there please help with a formula??

Thanks in anticipation

Richard 
90 Tintent