0.6 mm crochet hook

The short answer

A 0.6 mm hook is a US size 14, and レース針12号 in Japan. Buy by the millimetre number — it's printed on every hook and it means the same thing everywhere.

Shaft widths drawn at roughly life size. Hold your hook against the screen — the highlighted bar is 0.6 mm. Screen scaling varies by device, so treat this as a sanity check, not a measurement.

Thread lace, size 30-40 cotton.

The same hook in every system

Millimetres (the one that always works)	0.6 mm
US	14
UK	no UK size
Japanese 号	レース針12号 unverified
Type	lace

Systems with no exact match

0.6 mm has no direct equivalent in 1 of the three systems. These are the closest hooks, with the size difference spelled out — substitute at your own gauge risk.

System	Closest hook	Actual size	Difference
UK	14	2 mm	+1.4 mm

Yarn weights that suit this hook

No standard yarn weight lists this hook in its recommended range.

0.6 mm hooks

Aluminium, ergonomic and Japanese-style options in this size.

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Nearby sizes

0.5 mm 0.75 mm 0.9 mm 1 mm 1.25 mm

All hook sizes · US to Japanese hook chart

Last updated 2026-08-30.