Fishing hook sizes: how the numbers work, with a size chart.

A buying guide from Fishing Lures Co. Specs come from each product listing. Updated October 23, 2026.

Hook sizes use two scales. For small hooks, the bigger the number, the smaller the hook: a 6 is smaller than a 2. Past size 1 the scale flips and gets bigger with a zero: 1/0 is larger than 1, and 5/0 is larger still. Below is the chart for our offset worm hooks, with the measurements printed in the listing.

What do the numbers mean?

Sizes 6, 4, 2 and 1 shrink as the number rises. Sizes 1/0, 2/0, 3/0, 4/0 and 5/0 grow as the number before the slash rises. So the run from smallest to largest is 6, 4, 2, 1, 1/0, 2/0, 3/0, 4/0, 5/0.

What are the sizes of our offset worm hooks?

From the listing chart: size 6 is 15 mm wide and 25 mm long; 4 is 16.5 and 28; 2 is 19 and 33; 1 is 22 and 36; 1/0 is 23 and 38; 2/0 is 24 and 42; 3/0 is 26 and 45; 4/0 is 30 and 50; 5/0 is 33 and 53. Sizes are measured by hand, so allow a small error.

Which size for which soft bait?

Match the hook to the bait. A small hook suits a small soft plastic, and a larger gap suits a fatter worm or craw. Check the bait next to the hook before you rig it.

What is an offset worm hook?

A hook with a bend just behind the eye so the point can lie back along a soft plastic bait. Ours are high carbon steel with a barb, sold 50 to a clear box.

Compare what we sell

Hooks and soft baits we sell, from each listing
ProductWhat the listing saysIn the boxFrom
Offset worm fishing hooks, sizes 6 to 5/0Sizes: 6 to 5/0Per box: 10 or 50Material: High carbon steelOffset worm hooks: 10 or 50$9.99
Soft craw lures, 4 per bag, 8 cmPer bag: 4Length: About 8 cmMaterial: PVCCraw lures: 4, one colour$7.99
Curly tail grubs, 10 per bag, 1.6 gPer bag: 10Weight each: 1.6 gColours: 5Curly tail grubs: 10, one colour$8.99
Soft plastic lures, 20 pieces, 6 cmSize: 6 cmWeight each: 1.4 gPieces: 20Soft T-tail lures: 20 (one colour set)$9.99
Weighted jig head hooks, 3.5 to 10 gWeights: 3.5, 5, 7, 10 gBarb: YesPack: 3 or 10Jig head hooks: 3 (or 10 in the large pack)$9.99

Questions people ask

Is a bigger hook number a bigger hook?

Not always. Below size 1 a bigger number means a smaller hook. After 1/0 a bigger number before the slash means a bigger hook.

Are the hooks barbed?

Yes, the listing says they have a barb.

Do the hooks come with bait?

No. The packing list is the hooks only. See our soft plastic baits.

The products in this guide

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