Hello, I was wondering, if I'm knitting without a pattern, how would I work out how much I will need for a project? And if I only have a one or two balls, how would I work out if it will be enough for what I want to do? Thanks!
Look at a similar pattern that uses a similar yarn and needle. After a while, you'll be able to estimate how much something takes.
This link is good place to start. Just happened to have it bookmarked on my iPad! http://www.fiber2yarn.com/info/how_much_yarn.
I always buy at least 1 or 2 extra skeins just in case. I use the left overs for some other project, often striped hats, but anything could work.