mm to lb Fishing Line Conversion

Converting fishing line diameter from millimeters (mm) to pound test (lb) is approximate and can vary by line material. As a rough guide, a 0.28 mm line is approximately 6 lb, while a 0.45 mm line is roughly 18 lb. Keep in mind that these conversions are general estimates and actual line strength can vary by brand and material.

Diameter (mm)	Pound Test (lb)
0.20 mm	4 lb
0.23 mm	6 lb
0.28 mm	8 lb
0.30 mm	10 lb
0.33 mm	12 lb
0.35 mm	14 lb
0.38 mm	16 lb
0.40 mm	18 lb
0.45 mm	20 lb

FAQs

What lb line is 0.28 mm? A 0.28 mm fishing line is roughly equivalent to 6 lb test line.

How thick is 12 lb fishing line? 12 lb fishing line is approximately 0.30 mm in diameter.

What is the diameter of a 14 lb line? A 14 lb fishing line has an estimated diameter of about 0.33 mm.

What is the diameter of a 10lb line? A 10 lb fishing line typically has a diameter of around 0.28 mm.

How many pounds is 0.45 mm fishing line? A 0.45 mm fishing line is approximately equivalent to 18 lb test line.

What does 30 lb test line mean? 30 lb test line means that the line is rated to withstand a maximum load of approximately 30 pounds before breaking.

Is 12 lb line good for carp fishing? 12 lb line can be suitable for carp fishing, especially for smaller carp. For larger carp, you might want to use a higher pound test line.

How big of a fish can you catch on 30 lb test? With 30 lb test line, you can target a wide range of fish, including medium-sized to large game fish such as bass, pike, and smaller saltwater species.

Should I use 8 or 10 lb fishing line? The choice between 8 lb and 10 lb fishing line depends on the size of the fish you’re targeting. 8 lb line is suitable for smaller freshwater species, while 10 lb line provides a bit more strength for larger fish.

How thick is 20 pound line? 20 lb fishing line typically has a diameter of around 0.38 mm.

How thick is 15 lb line? 15 lb fishing line usually has a diameter of approximately 0.33 mm.

What diameter is 8 lb fishing line? 8 lb fishing line is roughly 0.25 mm in diameter.

What size line for 10 lb carp? Using 10 lb test line for carp fishing is generally suitable for smaller to medium-sized carp.

How do I know my fishing line size? You can find the size or pound test rating of your fishing line indicated on the packaging or spool of the line you purchased.

Does fishing line diameter matter? Yes, fishing line diameter matters as it affects casting distance, line visibility in the water, and the line’s strength. Thicker lines are generally stronger but may be more visible to fish.

How thick is 400 lb fishing line? A 400 lb fishing line is quite thick, with an estimated diameter of around 1.50 mm.

What size fish can you catch on 4 lb line? 4 lb line is suitable for catching small to medium-sized freshwater fish such as trout, panfish, and bass.

What is 8 lb fishing line good for? 8 lb fishing line is versatile and can be used for a wide range of freshwater fishing, including bass, trout, and panfish.

Can you put 20 lb line on a 10 lb reel? Yes, you can put 20 lb line on a reel designed for 10 lb line, but it might reduce the reel’s line capacity.

How big a fish can you catch on 6 lb line? 6 lb line is suitable for catching small to medium-sized freshwater fish, including trout, bass, and panfish.

Does fishing line go bad? Fishing line can degrade over time, especially if exposed to UV light and temperature extremes. It’s a good practice to replace old or damaged fishing line.

What size line for 20 lb carp? Using 20 lb test line for carp fishing is suitable for targeting medium to large carp.

What Color line is best for carp? Carp fishing lines are often available in various colors, but many anglers prefer low-visibility colors like green or brown to reduce the chances of spooking the carp.

What pound test is best for carp? The pound test for carp fishing can vary depending on the size of carp in your area, but many anglers use lines in the 12 lb to 20 lb range.

Can fish see your line? Fish can sometimes see fishing lines, especially in clear water. Using lines with low visibility colors and proper presentation can help reduce the chances of fish detecting the line.

Does fishing line color matter? Fishing line color can matter in certain situations, primarily in clear water or when targeting skittish fish. Low-visibility colors are often preferred.

What is the toughest fishing line? Braided fishing lines are generally considered the toughest due to their high strength-to-diameter ratio and resistance to abrasion.

Does heavier fishing line sink faster? Yes, heavier fishing lines typically sink faster than lighter lines, which can be an advantage when fishing deeper waters.

Is 50 lb braid too much? 50 lb braid may be too heavy for some situations but can be suitable for targeting larger and stronger fish or in heavy cover.

Is thinner fishing line better? Thinner fishing lines can have advantages like reduced visibility and better casting distance, but the choice depends on the type of fishing and target species.

How many mm is a 7 lb line? A 7 lb fishing line is approximately 0.23 mm in diameter.

What is a 20 pound braid line equivalent to? A 20 pound braid line is roughly equivalent to 6-8 lb monofilament or fluorocarbon line in terms of diameter.

How thick is 40 lb braid? 40 lb braid typically has a diameter of around 0.32 mm.

What is the best line for deep sea fishing? For deep sea fishing, many anglers prefer using heavy braided lines with high pound test ratings, typically 50 lb to 100 lb or more.

What strength line for deep sea fishing? Deep sea fishing often requires lines in the range of 50 lb to 100 lb or even heavier, depending on the target species.

How thick is 25 lb braid? 25 lb braid usually has a diameter of about 0.25 mm.

Can you catch carp on 8 lb line? Yes, you can catch carp on 8 lb line, especially if you’re targeting smaller carp. However, for larger carp, you might want to use a higher pound test line.

How many mm is 8 lb test fishing line? An 8 lb test fishing line is approximately 0.23 mm in diameter.

What diameter is 18 lb fishing line? An 18 lb fishing line typically has a diameter of around 0.35 mm.

Why use 10ft carp rods? A 10ft carp rod can provide longer casting distances and better control when fishing at greater distances from the bank, which is often necessary in carp fishing.

Is 4 lb line good for carp? 4 lb line is quite light for carp fishing and may not be suitable for larger carp. It’s more commonly used for smaller freshwater species.

Can 10 lb line catch big fish? A 10 lb line can catch moderately sized fish, but it may struggle with very large or powerful species. The choice of line should match the target fish’s size and strength.

What size test line for carp? The size of the test line for carp fishing depends on the size of the carp you’re targeting. Common choices range from 10 lb to 20 lb or more.

Is thick or thin fishing line better? The choice between thick and thin fishing lines depends on the fishing conditions and target species. Thinner lines often have advantages like less visibility and better casting distance.

What size line do tuna fisherman use? Tuna fishermen typically use heavy lines, often in the range of 50 lb to 150 lb or even heavier, depending on the size of the tuna species being targeted.

Does doubling fishing line make it stronger? Doubling fishing line doesn’t necessarily make it stronger. The strength of the line is determined by its pound test rating, not its diameter.

Does fishing line weaken with age? Yes, fishing line can weaken with age due to exposure to UV light, temperature fluctuations, and wear and tear. It’s important to inspect and replace old line when necessary.

What size fishing line for beginners? Beginners often start with fishing lines in the 8 lb to 12 lb range, as these lines are versatile and can be used for a wide range of fishing situations.

How thick is 300 lb fishing line? A 300 lb fishing line is very thick, with an estimated diameter of approximately 1.20 mm.

How many mm is 50 lb fishing line? A 50 lb fishing line is roughly equivalent to 0.50 mm in diameter.

What is 30 lb fishing line used for? 30 lb fishing line is commonly used for a variety of applications, including bass fishing, inshore saltwater fishing, and catfishing.

Can carp see fishing line? Carp can have good eyesight, and they may be able to see fishing line, especially in clear water. Using low-visibility lines and proper presentation can help reduce detection.

Is 6 lb line good for trout? 6 lb line is suitable for trout fishing, especially for smaller to medium-sized trout.

Can you catch carp on 6 lb line? You can catch smaller carp on 6 lb line, but larger carp may require heavier line to handle their strength.

Can you catch pike on 8 lb line? You can catch pike on 8 lb line, but it’s recommended to use heavier line when targeting larger pike due to their strength and sharp teeth.

What size fish can you catch on 12 lb line? With 12 lb line, you can catch a wide range of freshwater species, including bass, trout, walleye, and panfish.

What lb line should I use? The lb line you should use depends on the type of fishing you’re doing and the size of the fish you’re targeting. Refer to the recommendations on the fishing rod and reel you plan to use.

What happens if you put the wrong size line on a reel? Using the wrong size line on a reel can lead to casting problems, reduced line capacity, and potentially line breakage if the line is too heavy for the reel.

What happens if you use heavier line on a rod? Using heavier line on a rod can affect the rod’s performance and casting distance. It can also put extra stress on the rod.

What happens if line is too heavy for reel? If the line is too heavy for the reel, it can lead to casting issues, reduced line capacity, and potential damage to the reel’s drag system.

What size fish can you catch on 10lb line? With 10 lb line, you can catch a variety of freshwater fish, including bass, trout, panfish, and smaller catfish.

Is 6lb line good for bream? 6 lb line is suitable for bream fishing, as bream are typically small to medium-sized freshwater fish.

Is 100 yards of fishing line enough? The amount of fishing line you need depends on the type of fishing you’re doing and the fishing conditions. In many cases, 100 yards of line is sufficient, but it may vary.