Crochet Hook Size Chart

Crochet hook sizes are given in metric and US terms. Often times, a pattern will give the recommended hook in one or the other leaving you to look up the conversion on your own.

Use this handy crochet hook size chart to reference when you need to make the conversion between metric and US hook sizes!

2.25 mm = B = 1
2.75 mm = C = 2
3.25 mm = D = 3
3.50 mm = E = 4
3.75 mm = F = 5
4.00 mm = G = 6
4.50 mm = (no conversion) = 7
5.00 mm = H = 8
5.50 mm = I = 9
6.00 mm = J = 10
6.50 mm = K = 10.5
7.00 mm = (no conversion) = (no conversion)
8.00 mm = L = 11
9.00 mm = M/N = 13
10.00 mm = N/P = 15
15.00 mm = P/Q = (no conversion)
16.00 mm = Q = (no conversion)
19.00 mm = S = (no conversion)

Need help figuring out what hooks to buy?

Check out a review of my absolute favorite hooks!

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