GRID (to download a large file click here)

To calculate what 1 su is for your stupa -

divide the total height by 64. For example, if the stupa will be 2.50 metres high, that is 250 cm, so 1 su is 250/64=3.90 cm. That means, for example, that the total width of the base will be 19.5 su x 2 = 39 su, which is 39 x 3.90 = 152.1 cm (1.52 m)

Click here to download an Excel file which might help with the calculations for drawing the 13 rings.