This ridiculously easy skirt pattern uses a 4 mm hook and 8 ply wool and is written in American crochet notation. I designed the pattern for my own size but there are simple instructions for adapting it below.
To make the me-sized version
Chain 150, slip stitch in the first chain to form a ring
Rounds 1 – 12: sc in every stitch
Round 13: sc in the first six stitches, increase in the next stitch – repeat
Rounds 14 – 25: sc in every stitch
Round 26: sc in the first six stitches, increase in the next stitch – repeat
Rounds 27 – 38: sc in every stitch
Round 39: sc in the first six stitches, increase in the next stitch – repeat
Rounds 40 – 50: sc in every stitch
Fasten off, weave in end.
Cut a length of elastic to fit your waist. Sew the two ends together to form a ring. Fold the first few rows of the skirt down over the elastic and with a tapestry needle sew into place to form the waistband.
To adapt this pattern for your size, make a chain ring that is large enough to slide over your hips easily, then just follow the pattern (12 sc rounds, then 1 increase round, then 12 sc rounds etc) until the skirt is long enough.