Fishing Hook Size Chart
Fishing Hook Size Chart & Guide
Pick the right hook, improve catch rate, and avoid wasted casts.
Use our fishing hook size chart—it’ll save you a bunch of wasted casts and missed fish. Our friendly guide explains how to read sizes, when to use micro hooks, when to step up to 3/0 or 4/0, and why wire gauge and bait choice matter.
Read the rules, check our store’s picks, and you’ll always pick the right hook on every February fishing trip.
Fishing Hook Size Chart Explained
The fishing hook size chart should assist you in choosing the most appropriate hook for the type of fish you are targeting. The smaller the hook, the lower the number or “aught” you will see. Conversely, the greater the number, the larger the hook size.
To be brief, small hooks go with small bait and fish, and large hooks go with large bait and bigger fish that have more hook-ups.
Coarse Fishing Hook Sizes Chart
| Hook Size | Best For | Common Fish Species |
|---|---|---|
| #12 – #32 | Smaller hooks, delicate baits like worms | Small trout, panfish, crappie |
| #6 – #10 | Versatile for medium fish | Bass, perch, larger trout |
| 1/0 – 3/0 | Larger live bait fishing setups | Walleye, catfish, pike |
| 4/0 – 8/0 | Big fish, heavy tackle | Muskie, flathead catfish |
How to Read Fishing Hook Sizes Correctly
Mastery of reading takes only a moment because of the numbers drive; the higher the number assigned, the smaller the hook. Therefore, a #12 is small, best suited for small speckled trout or panfish. You will notice that a #4 is larger than a #12, then #1 is the next number. The next will be 1/0 meaning “one-aught,” and 3/0 is larger than 2/0. Similarly, a #10 is larger than #20; 2/0 is bigger than 1/0.
Examples of Hook Sizes
Size 12 Hooks
Relatively small hook for maggots, worms, or small lures. Slender wire, small hole. Just Fishing Bushido Hooks include #12.
Size 4 Hooks
Gap ~4–5 mm, good for bass or large perch. Used as bait-holder or worm hooks for large carp.
Size 17 with Eye
Very small hook for micro rigs. Perfect for trout, roach, or bluegill; gap ~1–2 mm.
Size 3/0 Hooks
“Three-aught” for large freshwater species like walleyes, pike, and catfish. Good for medium crankbaits or shiner under a bobber.
Size 25 Hooks
Extremely small, for very light freshwater or fly fishing. Usually #20–#32 range.
How to Choose the Right Fishing Hook Size
- Match hook to bait: small bait → fine hook; large bait → larger hook.
- Fish species: small (#10–#16), medium (#4–1 or 1/0–3/0), large (#4/0+).
- Hook type & strength: heavy fish need thicker-gauge hooks.
- Use a size chart or manufacturer table for reference.
Fishing Hook Types and Sizes in Just Fishing Store
- Sabiki & Multi-Hook Rigs: #8–#14
- Circle & Octopus Hooks: #4 to 12/0
- Worm & Weedless Hooks: #6 to 5/0 or 6/0
- Treble & Lure Hooks: #4–#10
- Carp & Pole Hooks: #4–#12/#14
- Heavy Game Hooks: 1/0–10/0
Hook Size Conversion
Numbered hooks: #32 → #1 (smaller → larger). Aught hooks: 1/0 → 20/0 (higher = bigger). #1 ≈ 1/0, still bigger than #1 numbered.
How Hook Size Affects Catch Rate & Fish Safety
Right size = more hookups. Too small → pulled/flattened. Too large → fish can’t swallow, may injure. Oversized hooks → deep throat hooking. Small hook + thick line → hook straightens, fish lost.
Common Mistakes
- Hook too big for bait → exposed hook.
- Not considering fish size → trout #10–16, salmon #1–4.
- Ignoring wire gauge → heavy hooks needed for strong fish.
- Dull hooks → always sharp and rust-free.
Tips for Beginners
- Use a sample pack to test hooks in a session.
- Ask locals or check online for size recommendations.
- Try a range instead of guessing one size.
- Always refer to hook size chart for your target fish and water quality.
FAQs
Hook size is determined by its standard. See our table above for reference.
Perfect for medium to large fish like bass, pike, catfish (~5–15 lbs).
For big fish & bait: striped bass, tarpon, large freshwater species (>10–15 lbs).
Best is size 6–8 for balance between strength & subtle bait presentation.
Wrong size reduces hookups. Too small → lose big fish. Too big → small fish won’t bite. Always check the hook size chart.