Here are some handy free printable knitting tools. (You'll need Acrobat Reader or Mac Preview to open and print).
These are good for a few sheets but any more than that and it gets expensive in printer ink and paper. That's why I made the Tricksy notebooks full of knitting graph paper (also available in lined).
Knitting Graph PaperI designed this for myself and use it frequently. Normal graph paper is square, which can be misleading when you are planning a colour chart or stitch pattern, because knitting stitches are usually wider than they are tall. This also has heaver lines every 5 sts/5 rows for easy counting.
Download Letter Size Knitting Graph Paper