These are the king bed sizes..King, 78 x 80. Cal. King, 72 x 84 with a 13" drop on 3 sides ....
King 104 x 93 and Cal. King 98 x 97. However, I think most quilts for Kings are around 105" square on up.
original DJ = 80.25" x 80.25" to convert to 105" square - ... 10500/80.5 = 130.43
You need an increase of at least 30%
If you enlarge all templates at 135% you will have a nice 109" square.
Monica