I lost my crochet hook . Size 3.5 mm . If I switch to a size 3mm will it make a huge different in my afghan ?

1 Answer 1


Not a huge difference, but certainly a noticable difference.

The size difference between a 3 and 3,5 hook is just half a millimeter. The size difference in the stitches you make with both hooks may be even smaller than that, but I think it's unlikely that you manage to make your stitches exactly the same size.

So let's assume each stitch gets only 0.1 mm smaller after switching to a smaller hook. If you crochet 50 stitches over the width of your afghan, you lose 5 cm (2 inches) in width. If you crochet 100 stitches over the entire width, you lose 10 cm (4 inches).

Of course you can compensate by deliberately making your stitches bigger. But I still think that you will get a visible line at the part where you switched hook size because your tension will change in that area.

  • 1
    To substitute and keep the stitch size the same you need to be a very experienced crocherer and all of those I know do have plenty of hooks in the popular sizes. My lifehack answer would be to ask around, especially older females might have a spare.
    – Willeke
    Commented Mar 30 at 9:38
  • Crochet hooks are very cheap, so getting a replacement shouldn't be an issue.
    – Stuart F
    Commented Apr 25 at 9:57

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