Does using a bigger crochet hook use less yarn?
If you are using the same pattern (same number of stitches and rows/rounds), a larger crochet hook will use up more yarn. If you are going for the same size of project (say a 36 by 36 inch blanket), a larger crochet hook will use up less yarn.
What is worsted weight yarn?
Worsted Weight Yarn is the most commonly used weight of yarn, slightly thicker than DK weight and thinner than bulky yarn. … Worsted weight yarns are recommend for projects with a knitting gauge of 4–5 stitches per inch and a crochet gauge of 2.75–3.5 single crochets per inch.