Crochet hook size and conversion

     Metric sizes (mm)             US sizes                  UK/Canadian   

           2.0                                   -                                    14
           2.25                               B/1                                  13
           2.5                                  -                                     12
           2.75                               C/2                                   -
           3.0                                  -                                     11
           3.25                               D/3                                 10
           3.5                                 E/4                                  9
           3.75                               F/5                                  -
           4.0                                 G/6                                  8
           4.5                                  7                                      7
           5.0                                 H/8                                  6
           5.5                                 I/9                                    5
           6.0                                 J/10                                 4
           6.5                                 K/10 1/2                           3
           7.0                                   -                                      2
           8.0                                 L/11                                  0
           9.0                                 M/13                               00
           10.0                               N/15                                000






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