Crochet hook comparison

crochet hook comparison chart
crochet hook size chart

As we live in different countries and even on the different sides of the world, we use different terminology, measurements etc. Here`s where comparison charts can become quite handy. In Europe we measure crochet hooks and knitting needles in millimeters (mm). In US and UK the sizes are in letters and numbers. Below you`ll find a chart that let`s you easily find crochet hook size in the system most comfortable for you.

The data is based on different charts found on the internet. To me it seems the bigger the hook the more confusing it gets with US sizing. So if you still feel confused or unsure about which hook to choose, I advise you to check out these links as well:

  • Crochet hooks size chart at – compares US sizes with metric and the old Canadian hook sizing.
  • Crochet hook sizes and conversions at Yarn Forward.
  • Useful crochet charts at including hook sizes in Japanese system.

Do not forget there is more information to be found on the internet if you just take the time to search!

Metric (in millimeters) USA UK
2.00 mm 14
2.25 mm B/1 13
2.50 mm 12
2.75 mm C/2 11
3.00 mm 11
3.25 mm D/3 10
3.50 mm E/4 9
3.75 mm F/5
4.00 mm G/6 8
4.25 mm G
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 2
8.00 mm L/11 0
9.00 mm M/N/13/15 00
10.00 mm N/P/15 000
15.75 mm/16.00 mm P/Q


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