I am not math challenged, so I usually make up an Excel spreadsheet to get very accurate estimates. I also use EQ7 if I want rougher estimates.
Is this the quilt you want to make?
https://www.frenchgeneral.com/quiltp...efleur-kit.php
If so, it's only one block, much like a carpenter's wheel block. Here's a web site that gives all the information for several different sizes, including a large one -
http://bloominworkshop.wordpress.com...ers-wheel-qal/
If you purchase the pattern in the first link, it should give you the yardage requirements.