Okay, seriously....
We can reverse engineer this. For my quilt (the one the OP is referring to) I used 3 jelly rolls; 1 neutral and 2 colored. I ended up with fifty-six 13" blocks, and when I finally get it assembled, my quilt will be 91"x104", which is a little small for a king but might work for you.
A jelly roll (40 strips x 2.5" wide) is a total of approximately 2.75 yards. So if you want to make the same kind of quilt as mine, with the same color placement, you will want 2.75 yards of light fabric and 5.5 yards of colored fabric. You can always round up for "just in case" and/or if you want an additional row of blocks.
Hope that helps!