PE Fishing Line Diameter Database
Search and compare PE braided fishing line by brand, model, PE size, pound test, strand count, and listed diameter. Use the database to find similar-size lines, compare how different braids may fill a reel, and choose more accurate specs for PE line-capacity calculations.
Important: PE size is not the same as pound test. Lines with the same PE rating can differ in strength, weave, coating, and manufacturer-listed diameter. For the most accurate reel-capacity estimate, use the line’s listed diameter whenever it is available.
PE Fishing Line Diameter Database
Compare PE braid by brand, PE size, strength, strand count, and published diameter. PE size is not the same as pound test.
Find Similar Diameter Lines
Choose a PE line to compare other lines that should occupy about the same spool space.
Browse the Full PE Line Database
How to Use the PE Line Diameter Database
Use the search and filter tools to compare braided fishing lines by brand, model, PE size, pound test, strand count, and listed diameter.
The database is most useful when you need to compare lines that may have similar labels but different physical sizes. Actual diameter affects spool capacity more directly than the pound test printed on the package.
Search for a Specific Line
Enter a brand name, product name, PE size, or pound test in the search field to narrow the results.
For example, searching for a brand can show the available PE sizes and diameters for that manufacturer. Searching for a PE size can help compare lines from several brands in the same general size range.
Compare Similar Diameters
Use the Find Similar PE Line Diameter tool when you want to locate lines that should occupy roughly the same amount of spool space.
This is useful when replacing one braid with another, comparing brands, or finding an alternative line for a reel with limited capacity.
Sort the Database
Select a column heading to sort the results by PE size, pound test, strand count, diameter, or another available field.
Sorting by Diameter (mm) is especially helpful when comparing reel-capacity differences between lines.
Check the Notes Column
Review the Notes column before using a diameter for a capacity calculation.
Some entries use a manufacturer-listed diameter, while others may use a PE reference diameter when a brand-specific measurement was unavailable. A manufacturer-listed diameter is preferred whenever it is available.
PE Size, Pound Test, and Diameter Are Different
PE size, pound test, and line diameter describe different parts of a braided fishing line.
PE size is a line-size designation commonly used on braid and reel-capacity specifications.
Pound test is the manufacturer’s listed strength rating.
Diameter describes the physical thickness of the line and has the greatest direct effect on how much line fits on a reel.
Two braided lines with the same PE size can have different pound-test ratings, coatings, strand counts, and listed diameters. Because of that, PE size should not be treated as a universal pound-test conversion.
For reel-capacity estimates, use the manufacturer’s listed diameter whenever possible. When an exact diameter is unavailable, a PE reference diameter can still provide a useful estimate, but the final spool fill may vary.
Use the Database for Reel-Capacity Estimates
After finding the PE line you plan to use, open the PE Line Capacity Calculator to estimate how much of that PE size will fit on your reel.
Start with the PE capacity printed on the reel or manufacturer specifications. Then enter the PE size and length listed for the spool, followed by the PE size you plan to use.
Choose Backing + Working Line when you want monofilament backing underneath a set amount of PE braid. Choose Capacity Only when filling the reel entirely with one PE line size.
Example
Suppose a reel is rated for PE 1.0 / 200 m, but you want to spool PE 0.8.
Search the database for the exact PE 0.8 product you plan to use, review its listed diameter and notes, and then use the PE Line Capacity Calculator to estimate how much PE 0.8 the reel may hold.
A thinner line will generally fit in a greater length, while a thicker line will fit in a shorter length.
When the database includes a manufacturer-listed diameter that differs from the standard PE reference diameter, use the Original ReelCalc Backing Calculator for a more diameter-specific estimate.
Why the Same PE Size Can Vary by Brand
Two braided lines labeled with the same PE size may not have identical specifications.
Differences can come from the number of strands, fiber type, weave tightness, surface coating, manufacturing method, and how the company measures or reports diameter.
One PE 1.0 line may be rated at a higher pound test than another. It may also feel smoother, rounder, stiffer, or slightly thicker even though both products carry the same PE number.
That is why this database includes more than PE size alone. Comparing the brand, product, pound test, strand count, diameter, and notes gives a more complete picture of how the line may perform and how much spool space it may use.
For capacity calculations, a verified manufacturer-listed diameter is usually more useful than relying only on PE size or pound test.
Accuracy and Limitations
The PE line specifications and capacity estimates on ReelCalc are intended as practical references, not guaranteed factory measurements.
Actual line diameter and spool capacity can vary because of manufacturing tolerances, coatings, braid shape, strand count, spooling tension, reel design, and how close the line is filled to the spool lip.
Manufacturer-listed diameter is preferred whenever it is available. When an exact product diameter cannot be confirmed, the database may use a standard PE reference diameter as an estimate.
For the best results:
Use the exact product listed in the database whenever possible.
Check the Notes column to see whether the diameter is manufacturer-listed or estimated.
Use the reel manufacturer’s stated capacity as the starting point.
Spool the line under consistent tension and stop slightly below the spool lip.
ReelCalc results should get you close, but small adjustments may still be needed while physically filling the reel.
Helpful ReelCalc Tools for PE Line
Found the line you want to use? Open the PE Line Capacity Calculator to estimate how much PE braid and backing will fit on your reel.
Working with an exact line diameter instead of a PE rating? Use the Original ReelCalc Backing Calculator for a diameter-based capacity estimate.
Need help choosing a complete setup? The Reel Setup Wizard can recommend a starting line based on your reel and fishing style.
Looking for recommendations for a specific reel model? Browse the Fishing Line Setup Guides.
New to the PE sizing system? Read What Is PE Fishing Line?
Comparing braid sizes for common spinning reels? See Best Braid Size for a Spinning Reel.
Need to compare mono, fluorocarbon, and braid outside the PE system? Use the Fishing Line Diameter Database.
FAQ: PE Line Diameter
What does PE mean on fishing line?
PE is a sizing system commonly used for braided fishing line. A smaller PE number generally means a thinner line, while a larger PE number generally means a thicker line.
Is PE size the same as pound test?
No. PE size describes the general size of the braid, while pound test is the manufacturer’s listed strength rating. Lines with the same PE size can have different pound-test ratings.
What is the diameter of PE fishing line?
The diameter depends on the PE size and the specific product. Lines with the same PE rating may still have slightly different diameters because of differences in weave, coating, strand count, and manufacturing.
Why do PE lines with the same size have different pound tests?
Manufacturers use different fibers, strand counts, coatings, and construction methods. These differences can change the strength of the line without changing the PE size printed on the package.
Which measurement should I use for reel-capacity calculations?
Use the manufacturer-listed diameter whenever it is available. Diameter has the most direct effect on how much line fits on a reel.
When an exact diameter is unavailable, the PE size can still provide a useful estimate.
How do I compare two PE braided lines?
Compare the PE size, pound test, strand count, listed diameter, and notes. Sorting the database by diameter can help identify lines that should take up a similar amount of spool space.
Can I use PE size to estimate how much braid fits on my reel?
Yes. Start with the PE capacity listed by the reel manufacturer, then use the PE Line Capacity Calculator to estimate capacity for a different PE size.
Does strand count affect PE line diameter?
It can. Strand count changes the construction, roundness, smoothness, and feel of the braid. However, two lines with the same strand count may still have different listed diameters.
Are the PE line diameters in this database exact?
The database uses manufacturer-listed specifications whenever they are available. Some entries may use a standard PE reference diameter when an exact product diameter cannot be confirmed.
Always review the Notes column before using a value for a reel-capacity calculation.
Putting the Database to Work
Use the PE Fishing Line Diameter Database to compare braid by brand, product, PE size, pound test, strand count, and listed diameter.
For reel-capacity estimates, diameter is the most useful measurement because it directly affects how much line fits on the spool. Use a verified manufacturer-listed diameter whenever possible, and check the Notes column when a reference diameter or estimate is used.
After choosing a line, open the PE Line Capacity Calculator to estimate total capacity or the amount of backing needed beneath your PE braid.