Originally Posted by Jennifer23

I use about 12 stitches per inch on my old Singer (bout 2.1 mm), and whatever the default is on my Janome (I think 2.5?). 1.8 would be too hard to pick out for the number of mistakes I make.



The numbers are stitch length in millimeters, so they should be standard across manufacturers. 1 inch = 25 mm, so a stitch length of 2.5 should be equivalent to 10 stitches per inch.