macdiver

Is there a table somewhere that gives equivalent tank sizes typically used in discussions (e.g. al 2 liter = 13 cu ft )? The above conversion factors are great for calculating accurate numbers but I usually see 2, 3, 7, 10, 12, and 15 liter tanks mentioned not 11. So is the above a 10 or a 12? or is it an 11 that just isn't as common?

edited due to typo