Use this Handy Helper to calculate the finished design size, stitch count or fabric count of a project. Enter the two measurements you know, the calculator will tell you the rest.
STITCH COUNT - Enter the actual number of cross stitches  Horizontal and/or Vertical.
FABRIC COUNT - Enter the stitches per inch.    
(working over two threads equals half the fabric count, 
i.e. over two on 28ct fabric =14 in fabric count box). 
DESIGN SIZE - Finished size of stitched area. 
Now you will be able to resize any design for the fabric you choose.