08.13.09
Knitting Needle or Crochet Hook Conversion
 U.S.- Metric ConversionClick here to view chart of U.S. knitting needle or crochet hooks.
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Estimate Knitting Gauge
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Estimating Knitting Gauge Using WPI. WRAPS PER INCH or by Yarn Size This is meant to be a starting point for sampling. Machine and hand knitters need to sample, with at least 4″ square. A difference of 1 stitch can add up to enormous size differences. Not all yarns fit nearly into a single category, but with adjustments to needle size you should get the correct gauge. |
| Standard Size | British | WPI | Approx. Gauge | Needle size | approx. yd/oz. | approx. yd/lb |
| Baby | 3 ply | 8-9 st/inch | 1-2 | |||
| Fingering | 4 Ply | 16 wpi | 7 st/inch | 1-3 | 110-144 | 1700-2300 |
| Sport | DK | 14 wpi | 5½ - 6½ st/inch | 4-6 | 75-110 | 1200-1600 |
| Worsted | Aran | 12 wpi | 4-5 st./inch | 7-9 | 55-75 | 850-1100 |
| Bulky | 9 wpi | 3-3½ st./inch | 10-11 | 30-55 | 500-900 |
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Lace Gauge Varies. Fine knitting or crochet. Knitting Machine: Tension 3-4 on 4.5mm machine (standard bed) |
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Sock, Baby, Fingering 1500 + yds per lb. 14 wraps per inch. 94 yds+ per oz. Needle size: 0-3 (2-3.25mm) Knit gauge 7 or more stitches = 1″ Crochet Hook size: D/3-E/4 Crochet gauge: 22-28 stitches = 4″ Machine Knit: Tension 7-8 on 4.5mm machine (standard bed) |
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Sport 1200-1600 yds per lb. 12 wraps per inch. 75-100 yds per oz. Needle size: 4-6 (3.5-4mm) Knit gauge: 7 sts = 1″ Crochet Hook size: F/5-G/6 Crochet gauge: 16-20 sts = 4″ Machine Knit: Tension 9-10 on 4.5mm machine (standard bed) Tension 3-6 on a 6.5 or 7.0 mm machine (mid-gauge bed) |
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DK Double Knit 1200-1600 yds per lb. 11 wraps per inch. 75-100 yds per oz. Needle size: 5-7 (3.75-4.5mm) Knit gauge: 6 sts = 1″ Crochet Hook size: F/5-G/6 Crochet gauge: 16 sts = 4″ Machine Knit: Tension 5-7 on 6.5-7 mm (mid-gauge bed machines) Tension 0-1 on 9mm (bulky bed machines) |
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Light - Medium Worsted 850-1150 yds per lb. 9 wraps per inch. 53-72 yds per oz Needle size: 7-9 (4.5-5.5mm) Knit gauge: 5 sts = 1″ Crochet Hook size: H/8-J/10 Crochet gauge: 12-16 sts = 4″ Knitting Machine: Tension 5 on 9mm (bulky bed machines) Tension 8-10 on 6.5-7mm (mid-gauge bed machines) |
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Heavy Worsted or Bulky 500-900 yds per lb. 31-56 yds per oz 7-8 wraps per inch Needle size: 9-11 (5.5-8mm) Knit gauge: 4 sts = 1″ Crochet Hook size: K10 ½-L (7mm) Crochet gauge: 8-12 sts = 4″ Knitting Machine: Tension 7-9 on 9mm (bulky bed machines) |
Yarn Yardage estimates for Common Garments.
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Socks |
Gauge |
Child S - M - L Foot length 5, 6½, 8 |
Adult S - M - L Foot length 9½, 10½, 11½ |
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Sock - Fingering wt. |
6 - 8 sts per inch |
150 - 225 - 275 yds. |
325 - 425 - 525 |
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Sport wt. |
5 - 6 sts per inch |
125 - 175 - 225 |
250 - 325 - 400 |
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Worsted wt. |
4 - 4½ sts per inch |
125 - 150 - 200 |
250 - 300 - 350 |
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Bulky wt. |
3 - 3½ sts per inch |
100 - 125 - 150 |
175 - 225 - 275 |
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Hat |
Gauge |
Child - Adult 18″ - 20″ - 22″ |
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Sport wt. |
5 - 6 sts per inch |
175 - 225 - 275 yds. |
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Worsted wt. |
4 - 4½ sts per inch |
175 - 225 - 250 |
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Bulky wt. |
3 - 3½ sts per inch |
125 - 150 - 175 |
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| Mitten | Gauge |
Child 5″, 5½” |
Adult 6″, 7″, 8″ |
| Fingering Wt. | Yards | Yards | |
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Sport wt. |
5 - 6 sts per inch | 75 - 100 | 125 - 150 - 175 |
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Worsted wt. |
4 - 4½ sts per inch | 75 - 100 | 125 - 150 - 175 |
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Bulky wt. |
3 - 3½ sts per inch | 50 - 75 | 100 - 125 - 150 |
| Afghan-Throw | Gauge | Baby | 60″ x 60″ |
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Sock - Fingering wt. |
6 ½ - 7 sts per inch | 1351 yds. | 3500 yds. |
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Sport wt. |
5 - 6 sts per inch | 1200 yds. | 3,150 yds. |
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DK Double Knit |
5 sts per inch | 1100 yds. | 2800 yds. |
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Worsted wt. |
4 - 4½ sts per inch | 1000 yds. | 2,660 yds. |
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Bulky wt. |
3 - 3½ sts per inch | 850 yds. | 1,875 yds. |
| Scarf | Gauge | Child 6″ x 40″ | Adult 8″ x 54″ |
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Sock - Fingering wt. |
6 ½ - 7 sts per inch | 440 yds. | 660 yds. |
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Sport wt. |
5 - 6 sts per inch | 350 yds | 700 yds |
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DK Double Knit |
5 sts per inch | 250 yds | 450 yds |
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Worsted wt. |
4 - 4½ sts per inch | 190 yds | 380 yds |
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Bulky wt. |
3 - 3½ sts per inch | 125 yds | 250 yds |
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Vest |
Child 24″ - 28 “- 32″ |
Adult 36″- 40″- 44″ - 48″- 52″ |
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Sock - Fingering wt. |
6 ½ - 7 sts per inch | 400 550 750 yds. | 950 1125 1300 1450 1650 yds. |
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Sport wt. |
5 - 6 sts per inch | 300 400 600 yds. | 700 850 950 1100 1250 yds. |
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DK Double Knit |
5 sts per inch | 275 375 550 yds. | 650 800 900 1000 1100 yds |
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Worsted wt. |
4 - 4½ sts per inch | 250 350 500 yds. | 600 750 850 950 1050 yds. |
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Bulky wt. |
3 - 3½ sts per inch | 175 250 400 yds. | 450 550 650 700 800 yds. |
| Sweater |
Child 24″ - 28 “- 32″ |
Adult 36 “- 40″ - 44″ - 48″ - 52″ |
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Sock - Fingering wt. |
6 ½ - 7 sts per inch | 750 100 1450 yds. | 1800 2100 2500 2700 3000 |
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Sport wt. |
5 - 6 sts per inch | 550 800 1100 | 1400 1600 1900 2100 2300 |
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Worsted wt. |
4 - 4½ sts per inch | 500 650 1000 | 1200 1400 1600 1800 2000 |
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Bulky wt. |
3 - 3½ sts per inch | 350 500 700 | 900 1000 1200 1300 1500 |