Yarn Type	Typical Gauge	Wraps/Inch	Yards/Pound*	Recommended Needle Size
Ultrafine (Lace or Baby Weight)	8+/inch 32+/10cm	18 or more	2600	00 - 2 2 - 3mm
Fine (Fingering Weight)	6-8/inch 24-32/10cm	16	1900-2400	2 - 4 3 - 3.75mm
Medium (Sport Weight)	5-6/inch 20-24/10cm	14	1200-1800	4 - 6 3.75 - 4.5 mm
Double Knit DK	4/inch 14-18cm	13	1100-1300	5-7 3.75-4.5mm
Heavy (Worsted Weight)	4-5/inch 16-20/10cm	12	900-1200	7 - 9 5 - 6mm
Bulky	3-4/inch 12-16/10cm	10	600-800	10 - 10 1/2 6.5 - 7.5mm
Very Bulky	2-3/inch 8-12/10cm	8 or fewer	400-500	13 - 15 9 - 10mm

Yarn is sold mainly by weight in balls or skeins. This method does not give a very precise measurement for yardage as the actual length of yarn can vary depending upon the makeup of the yarn. The Craft Yarn Council is attempting to promote a standardized system for measurement. The most precise measurement currently used is the wrap method used my many weavers. It is simply taking the yarn and wrapping it around a ruler and counting the number of wraps that fit within the inch [wpi]. All measurements listed above are approximations and not exact, but will give you a general guideline for your yarn.

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