

Some giant Angora kits. All bucks, but one.
For example, for a pair of women's size 8 socks with worsted weight yarn cast on 36 stitches. Knit K1, P1 rib for 36 rows, then 9 rows st stitch (1/4 of 36), then the heal flap (about 2-2.5 inches), then about 36+9 rows of st stitch with gusset decreases, then the toe decreases.
If bigger or smaller socks are wanted, cast on more or fewer stitches and knit about as many rows as the number of stitches as cast on for a cuff. All of my 26 ppii socks are the same sort of “formula”, and are 24 -36 stitches cast on.
The formula works for other weights of yarn too. Think about it. For fingering weight yarn ~60 stitches are cast on, knit for about 60 rows, etc..