When measuring circular needles do you include the needles?
Circular needles are measured from tip to tip, and so the length of the needle includes both needle points and the connecting tube.
Are knitting needles measured by diameter?
So, to measure your knitting needles all you need is a ruler that has the metric system on one side of it and this handy dandy chart below. Simply measure the diameter of your needle by placing it between the hash marks on your ruler. Count how many lines it falls between.
Does circular needle length matter?
You may have thought all along that bigger circular needles produce better stitches but you are wrong! Every circular needle size and cord length has its own purpose. Each needle size is numbered and the smaller this number is, the smaller the circular needle will be and you will also have to use a thinner yarn.
Can you use longer circular needles?
Besides using a really long (40″ or longer) circular needle that may already be in your stash, this technique also gives the opportunity to knit both halves of the pair at once, helping keep consistent gauge and progress in front of us for the entire project.