Master List of Crochet Hook Sizes + Learn How to Gauge

Crochet hook sizes matter. New crocheters may not notice a difference until they stare at a yarn aisle and see all the different sizes.

I recommend hook sizes 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 is H, I, J, and K. Be careful with the Boye brand of hooks. See note below in the list.

If you are unsure, look at the ball band, which recommends the hook size needed.

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

• 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
• Careful Boye Hooks have 5.25 mm and are indicated as I/9 size. It’s not a standard size. Check the millimetres on the hook if required.
• 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 recommend the hook sizes in red for learning.

How to Check Gauge

Summary

Article Name

Complete List of Crochet Hook Sizes + Conversions with Free Downloadable

Description

See the different size crochet hooks and what the equivalent is when converting from metric to USA sizing.

Author

Michael Sellick

Publisher Name

The Crochet Crowd

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