This also depends on how many strips are in your roll.
General rule of thumb: 20-strip rolls have 1.5 yards, 40-strip rolls have 3. If you're making a queen that will end up around 90" x 90", You'll probably need at least 9 yards total of fabric - so 6 20-strip rolls or 3 40-strip rolls. If you're making a more intricate design - say you're patching squares - you'll lose a lot more yardage to seam allowances.