Spinning reels work with every line type, which makes the choice harder, not easier. This is how to pick between monofilament, braid and fluorocarbon for your reel, your water and the fish you are after.
| Line | Strength for diameter | Stretch | Visibility | Best for |
|---|---|---|---|---|
| Monofilament | Baseline | High | Moderate | Beginners, topwater, crankbaits, cheap to refill |
| Fluorocarbon | Slightly less than mono | Low | Very low underwater | Leaders, clear water, bottom-contact presentations |
| Braid | Three to four times mono | None | High | Bottom contact, heavy cover, sensitivity, small reels |
There is no best line, only a best line for what you are doing. Most experienced anglers use two: braid as main line with a fluorocarbon leader.
General freshwater, one spool: 8 to 10 lb monofilament. It forgives mistakes, it floats for topwater, and it is cheap enough to change three times a season.
Bass and pike in cover: 30 lb braid with a 12 to 15 lb fluorocarbon leader. You get sensitivity and the strength to pull fish out of weeds.
Clear water finesse: 6 to 8 lb fluorocarbon straight through, or 10 lb braid with a 6 lb fluorocarbon leader for trout and pressured bass.
Inshore saltwater: 20 to 30 lb braid with a 30 lb fluorocarbon leader. Braid handles the abrasion and the fluorocarbon handles the teeth.
Spinning reels twist line as they go. Braid is the most sensitive to it, which is why wind knots happen — usually from an overfilled spool or from reeling against a drag that is slipping.
Fill the spool to about an eighth of an inch below the lip, close the bail by hand rather than by cranking, and keep the line under tension for the first few casts after you spool.
These are the ones that cover the situations most US anglers actually face, in the strengths the chart calls for.
The cheapest and most forgiving line there is. Still the right answer for topwater, crankbaits and for anyone learning to cast.
Check current price on Amazon →Three to four times stronger per diameter than mono, with no stretch. The standard main line for bass, pike and inshore saltwater.
Check current price on Amazon →Nearly invisible underwater and far more abrasion resistant than mono. The last few feet of any serious rig.
Check current price on Amazon →A spooler keeps tension while you fill, which is the single biggest factor in whether a spinning reel casts cleanly or throws loops.
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Too little line costs you distance, too much costs you castability. The reel line capacity calculator works it out from the spool and diameter, the line diameter converter translates between rating systems, and the line strength chart shows what each material gives up to get there.
Braid for sensitivity, strength per diameter and bottom contact. Mono if you want stretch for crankbaits and topwater, or if you want the cheapest, most forgiving line available.
Almost always. Braid is highly visible and it slips through teeth and rocks. A fluorocarbon leader of two or three feet solves both problems.
30 lb braid with a 12 to 15 lb fluorocarbon leader for most techniques, or straight 10 to 12 lb fluorocarbon in clear water.
Usually an overfilled spool or line going on loose. Fill to an eighth of an inch below the lip and always spool under tension.
Mono at least once a season, and more often if it has been in the sun. Leader after every few fish. Braid lasts for years if it is not abraded.
Line diameter chart · Braid to mono converter · Reel line capacity calculator · Reel size chart · Best line for baitcasters
Rods and reels: Best Rod for Beginners · Best Spinning Reel Under 100
Fishing line: Best Braided Fishing Line · Best Line for a Baitcaster
Bass and panfish lures: Best Bass Lures · Best Crappie Lures · Best Panfish Lures · Best Striped Bass Lures
Trout and walleye lures: Best Trout Lures · Best Walleye Lures
Catfish tackle: Best Catfish Rig · Best Catfish Hooks
Knots: Best Knots for Braid
Tools and storage: Best Fishing Pliers · Best Fishing Scale · Best Fishing Net · Best Tackle Box
Wearables and electronics: Best Fishing Gloves · Best Fishing Sunglasses · Best Fishing Waders · Best Fish Finder
Also worth reading: Baitcaster line capacity
Spinning reels are sensitive to line memory and diameter, so the figures behind this page come from published manufacturer specifications for diameter, breaking strain and material. A line that holds its coil less tightly casts farther from a spinning reel, and that property is not printed on the packaging, which is why material matters more here than raw strength.
Please note: every figure on this page is an estimate, not a measured result. Tolerances between brands, wear on your gear and your own setup all change the outcome. TackleCalc has no connection to any brand mentioned here, and this content is for reference only.