Is there any way to figure out the gauge of a yarn when knit double-stranded without actually trying it out? For example, if I wanted to substitute a sport weight yarn for a worsted weight can I figure out some way of calculating what the doubled gauge would be from the yarn’s original (i.e. what the package says) gauge? Or do I have to try it out? I know the needle size and everything will make it tricky to convert.
Does this even sound like a good idea? :?? I want to use some of the knit picks cotton yarn, but it’s sport weight and the pattern I wanted to do uses worsted.