An Australian software company, Cordless Dog came to the aid of knitters everywhere with their Great iPhone App ConvertKnit! Regardless of where you are in the world you are now able to convert needle sizes, gauge and yarn weight terms into your preferred nomenclature.
I use this regularly for working with foreign patterns, yarns and also for helping me to convert weights from grams to ounces when I list fibre and yarn for sale.
It is easy to use and a great tool to have when yarn shopping. Check it out on iTunes and on the developer’s main site at http://cordlessdog.com/convertknit/.
Have a wonderful day... Sara x