Master List of Crochet Hook Sizes

Master List of Crochet Hook Sizes

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Crochet Hook Size Conversions

Crochet Hook Size Conversions

Master List of Crochet Hook Sizes

Crochet hook sizes matter. New crocheters may not even clue in there is a difference until they are staring at a yarn aisle and seeing all the different sizes.

Hook sizes I recommend when making a purchase for the first time. Look for 5 mm, 5.5 mm, 6 mm or 6.5 mm. For our USA friends, that size H, I, J and K.

If you are ever unsure, look at the ball band and it gives a recommendation for the hook size needed.

Sizes indicated in the following order. Metric, USA, UK

Fine, Socks & Doilies

  • 2 mm,  n/a, 14
  • 2.25 mm, B/1, 13
  • 2.50 mm, n/a, 12
  • 2.75 mm, C, 11
  • 3.00 mm, n/a, 11
  • 3.25 mm, D, 10
  • 3.50 mm, E/4, 9
  • 3.75 mm, F, n/a
  • 4.00 mm, 6, 8
  • 4.25 mm, G, n/a
  • 4.50 mm, 7, 7
  • 5.00 mm, H/8, 6
  • 5.50 mm, I/9, 5
  • 6.00 mm, J/10, 4
  • 6.50 mm, K/10.5, 3
  • 7.00 mm, n/a, 2
  • 8.00 mm, L, 0
  • 9.00 mm, M/N/15, 00
  • 10.00 mm, P, 000
  • 16.00 mm, Q, n/a
  • 19.00 mm, S, n/a
  • 25.00 mm, U, n/a
  • 30.00 mm, Z, n/a

For beginners, I would recommend the hook sizes in red for learning.

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4 thoughts on “Master List of Crochet Hook Sizes”

  1. Val says:

    My Clover Amour hooks have a G on them for the 4mm size. Also the UK has been on metric sizing since they joined the EU.

  2. Christine says:

    What about size M? I have a pattern calling for size M or 13mm

    1. Victoria Nitzsche says:

      Size M is 9.0 needle and size 13 is 0.85 needle

  3. Jean M says:

    I have some sizes that aren’t listed. 5.25, 5.75 just to mention a couple as well as some steel hooks that aren’t on any list I’ve seen.

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