Conversion Charts

 

Something to be aware of when you start crocheting is there is a difference between UK & US terminology in addition to their different sizing convention for hooks, knitting needles and yarn weights (Australia also has a different version)

Crochet terms

UK USA
Double crochet Single crochet
Half treble crochet Half double crochet
Treble crochet Double crochet
Double treble crochet Treble crochet
Triple treble crochet Double treble crochet
Tension Gauge
Miss Skip

Hook & Needle Sizes

The majority of modern patterns give hook and needle sizes in mm.

However American patterns can use either a letter or a number and “vintage” UK & Canadian patterns could have used a number.

 

Metric (mm)

USA  UK / Canada
2 0 14
2.25 B / 1 13
2.75 C / 2 12
3 11
3.25 D / 3 10
3.5 E / 4
3.75 F / 5 9
4 G /6 8
4.5 7 7
5 H / 8 6
5.5 I / 9 5
6 J / 10 4
6.5 K / 10 ½ 3
7 2
7.5 1
8 L / 11 0
9 M / 13 00
10 N / 15 000
12 17
15
16 19
19 35
20 36
25 50

Yarn Weights

UK US Australian Hook size (mm)
1 ply Lace 2 ply 1.5 – 2.25
2 ply Fingering 3 ply 2.25 – 3.5
4 ply Sport 5 ply 3.5 – 4.5
DK DK 8 ply 4.5 – 5.5
Aran Worsted 10 ply 5.5 – 6.5
Chunky Bulky 12 ply 6.5 – 9
Super chunky Super bulky 14 ply 9+

 

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2 thoughts on “Conversion Charts

  1. Pingback: Amigurumi Elephant 2 – Ceefer Crafts

  2. Pingback: Crocheted Snowflake 1 – Ceefer Crafts

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