Does anyone know if there is a way to calculate a pattern for a knit hat for whatever yarn or needles you might have. I've only followed patterns for hats but sometimes I'd like to make one with a particular yarn but can't find a pattern specific for that yarn or I don't have the size of needles it calls for but might have a size smaller or larger. It seems like it should be something easy to figure out. I've seen lots of hats made with handspun yarn...the thickness of that varies and so a pattern couldn't be specific for it. Any tips or ideas would be greatly appreciated.
Happy Wednesday and happy knitting! :)