Yarn conversion chart

Meters per 100gm	Standard Yarn Weight	UK Yarn Type	Australian Yarn Ply	US Yarn Type	Wraps per Inch	Suggested Needle Size	Tension/Gauge (4in/10cm)
40		Super Chunky	16 Ply	Super Bulky	< 6 wpi	8 - 12 mm	< 11 sts
50
60
70
80
90		Chunky	12 - 14 Ply	Bulky	6 - 8 wpi	5.5 - 8 mm	12 - 16 sts
100
110
120
130		Aran	10 Ply	Worsted	8 - 10 wpi	4.5 - 5.5 mm	16 - 20 sts
140
150
160
170
180					10 - 12 wpi
190
200
210		DK	8 Ply	DK		3.75 - 4.5 mm	20 - 24 sts
220
230
240
250					12 - 18 wpi
260		4 Ply	5 Ply	Sport		3.25 - 3.75 mm	24 - 28 sts
270
280
290
300
320					18 - 24 wpi
340
360			4 Ply
380
400							28 - 36 sts
420				Fingering	24 - 30 wpi	2.25 - 3.25 mm
440
460
480
500		3 Ply	3 Ply		30 - 36 wpi
520
540
560
580
600		Lace	2 Ply	Lace	36 - 40 wpi	1.5 - 2.25 mm	> 36 sts
700
800
900
1000					> 40 wpi
1100