View Full Version : SIZE

04-15-2008, 04:55 PM
i HAVE A SET OF hero knitting needles 1/2" dia. any idea how to figure what size they are???

04-15-2008, 05:17 PM
Here's my guess - since 1/2 inch is about 12 mm, I would say that's the size. And in US sizes 12 mm would be size 17, I think. Being Canadian I can't ever remember the conversion... :)

Hope that helps - if I'm wrong someone please correct me!

04-15-2008, 11:53 PM
Do you have a needle sizer? Just see which hole the needle fits.

04-16-2008, 12:14 AM
Okay, I think I'm officially confused! :) I measured around a 12 mm (size 15 US) needle I have and the diameter is WAY off - I found out that the 12 mm size refers to the radius of the needle, not the diameter... My bad!

However, when I lay the 12 mm needle on a ruler, it DOES look like the width of the needle is 1/2 inch, or 12 mm. So depending on whether or not you're talking radius or diameter, my estimate may or may not be correct...

The needle sizer I have only goes up to 10 mm, so even if you have one that may not help if your needle really is that big! I hope we can figure it out, though!

04-16-2008, 08:08 AM
Measure around the needle...this is circumference. Divide the circumference by 3.1416 and you will get the diameter. (Remember algebra and pi r 2?) Then the diameter can be referenced to mm. 1/2" = .4622, therefore, the needle would be considered a size 16. This is just .75 mm difference from a size 17, which is 12.75mm. Hope this helps!

04-16-2008, 08:43 AM
Take one of the needles and go to Joann's or Michael's, etc., and hold it up to the packages of needles until you find a visual match. Large size needles make fairly bit jumps, so you'll probably be able to figure it out this way-- I wouldn't trust my eye on some of the smaller sizes, especially between types (a dull wooden needle next to a shiny metal one could be deceptive), but you should be okay with one that large.

04-16-2008, 09:32 AM
I bought a Joann's brand `size 17' needle which had 12mm printed on the side. I also have a Boye 17 which is 12.75mm. My needle sizer doesn't go above a 15 which are 10mm btw.

04-16-2008, 09:38 AM
That's so funny that two needles called size 17 are two different mm measurements...

The size 17 needles I have are the 12 mm kind, so that's what I was thinking, and I was going off the conversion chart at http://www.yarnforward.com/needleconv.html ...

04-16-2008, 10:06 AM
At that size, .75 mm makes quite a bit of difference.