You are also asked to include the width of one of your single crochet stitches, in centimetres. In order to determine this, you should crochet a few rows of stitches using the same yarn and hook that you intend to use when making your sphere. Use a ruler to measure the average width of one of your stitches. In this calculation, I assume that your single crochet stitches are square (i.e. the height is the same as the width).
Once you input the information below, the pattern will be emailed as a pdf to the email address that you specify.