what is worsted weight yarn uk

Worsted weight yarn is a medium weight yarn that sits in the middle of the yarn weight family. It is thicker than sock and sport weight and thinner than bulky weight yarn. In the UK, worsted weight yarn is equivalent to Aran or Afghan weight wool. It is sometimes known as 10 ply yarn. Worsted weight yarns are medium thickness and knit up on 4-5½mm needles, making them a good choice for beginners and winter knits such as jumpers and blankets. Light worsted is the same as DK in the UK. The number of plies a yarn contains varies, so the terms "10 ply" and "8 ply" arent totally accurate.