I know I should know this...but I don't.
What's the difference?
Hi,Sport weight is a little heavier than fingering or sock yarn and a little lighter than DK (light worsted) yarn. You can see where the different yarn types line up here: http://www.yarnstandards.com/weight.htmlHTH.Katrina
DK - 22 sts/4"; sport - 24 sts/4"