How Much Braided Line Can I Put on my Spinning Reel?


The Charleston Angler has the pleasure of working with some fine  individuals  and organizations that distribute helpful information to anglers. This article is Courtesy of  News Casts, The newsletter of the Daniel Island Inshore Fishing Club.  It was written by a Friend of the Angler and Accomplished Fisherman-Ron Silverman. Thanks to Ron and the Daniel Island Fishing Club  for sharing it with us.


How Much Braided Line Can I Put on my Spinning Reel?

By Ron Silverman


By now, we all know the virtues of using braided line, which includes the ability to make long casts, especially with light baits. It is important to fill your reel spool to its capacity to get this benefit and to keep from having to re-spool frequently when, due to normal line loss during fishing, the spool gets low.


Until now, reel specifications and spinning reel spools only gave you line capacity info using mono line. Trying to figure out how much braided line the spool would hold was never easy, as mono diameter to braided line diameter conversions do not work well. Shimano has just made the answer to this question a lot easier, by publishing on its web site the line capacity for braided line for its spinning reels, using Power Pro as the standard. Capacities are show by model (Stradic, Saros, Symmetry, etc.) and offer a good guideline for mono to braid conversion for other brand reels with known mono capacity.  


Knowing how much braided line a reel will hold in advance is important if you are buying braided line, as it comes in different size fill spools: 150, 300, 500, yards (and if you use a lot, 1,500 yards). You don’t want to buy too little to fill the spool, or too much, and have a lot left over


For example, if you wanted to fill a #2500 reel, the table below will tell you that you need 170 yards of 10-lb test Power Pro. So, buying a 150 yard fill spool would leave you 20 yards short; and buying a 300 yard spool would waste 130 yards if you filled only one spool and be too little to fill two spools needing a total of 340 yards (170 yards each).


But, if you bought a 500 yard spool, you could fill three spools very efficiently (170 yards per spool x 3 spools = 510 yards). Since most of us have more than one rod and reel that we fish with, and since from time to time we have to re-spool with braided line, it often pays to look up the braided line capacity for our reels, now that it has been published, and buy the most efficient quantity of braided line for our needs.


Check it out at:   (Note: The braided line capacity for Shimano reels is not show on the spool itself or the outside of the box. The only place that I find it is on their web site.)




Line Retrieve Per Crank (in.)

Line Capacity (# Test/Yards)

Power Pro Line Capacity (# Test/Yards)

Max Drag (lbs.)

Ball Bearings

Roller Bearings

Gear Ratio

Weight (oz)



2/190, 4/100, 6/60









2/270, 4/140, 6/110









6/200, 8/140, 10/120









6/230, 8/170, 10/140









8/240, 10/200, 12/160







23 thoughts on “How Much Braided Line Can I Put on my Spinning Reel?

  1. thecharlestonangler Post author

    It depends on how much braid you want on your reel. It also depends on fishing conditions and your target species. We usually back the reel with monofilament and then fill the remainder of the spool with braid. Braided lines are usually sold in 150-300 yard spools. Considering the ultra small diameter of braided lines, you may want to consider going up a size in line class so you don’t end up with 800 yards of 20lb. braid on a reel that is rated for 200 yards of 20lb monofilament. Thanks for your inquiry.

  2. Richard from Texas

    I am a bit confused with braided dia and mono dia. For example, 6lb MONO can fill a 3000 reel 230 yds. …BUT If you use 20 lb PowerPro that is also 6lb diameter it only fills the spool 145 yds according to the shimano website. I have a stradic 3000 FI and I dont want to buy too much line or too little.

  3. thecharlestonangler Post author

    All of the Stradic catalogs we’ve looked over say the same thing you’re saying. It just doesn’t make sense. Your best bet would be to go to your local shop and get them to add the correct amount of line.


    I’m switching from mono to braided line on my light spinning reels and have read and heard the spool needs to be backed up by mono and then topped off with braid. What is the reason for this and how much mono should I use?

  5. thecharlestonangler Post author

    Most braided lines are slick and because they don’t stretch, can sometimes slip when tied directly to your reel spool. The mono backing is used to keep the braid from slipping against the spool so you really only need to put enough mono on the spool so that the braid does not rest directly on the spool…depending on the size of your reel…a few yards would be adequate. However, many guys will put more mono on the spool so that they will need less of the braid to save a little money since the braid is more expensive than mono. Over the last few years, some reel manufacturers have started putting a rubber material on the reel spools to eliminate the need for backing with mono. You can take a look at the Penn Battle or Conquer reels to see it.

  6. mack

    just wrap your reel feed first with electric tape then put your braid line problem solve it wont slip at all

  7. Rick Nickolaus

    I am a bass fisherman, and I use braid on all my spinning reels, with a mono leader. I always use mono backing, with a guesstimate of 75 yards of braid on top of the mono. I seperate the two by putting a ring of electrical tape over the mono so the braid doesn’t bite into it. The reason for the mono backing? Simply economics. Why use line you’ll never use? When it comes time for changing, I simply upend the line, putting the used line on first, and now I have brand new line to start again. Bottom line, braid is expensive. Why make it more expensive than it has to be?

  8. Jayson

    Hi all,

    Can I put a 20lb braid on my 6-8lb Shakespeare spinning reel? If not, what would you recommend?

  9. thecharlestonangler Post author

    For that size reel we’d recommend staying with the advertised line size so you can get the appropriate amount of line on the reel. If you want braid on your reel, Spiderwire (which we carry in our tackle shops) makes an 8lb braided line just for your size reel.

  10. Hecto

    Hi. I have a 3000 and 2500 reels I used for fishing in the river in Perth. I have moved to the north west and aiming for bigger fish. Can I put 20lb braid (and mono backing like has been suggested) ? Or do I need to update my reels …and probably rods.

  11. FB

    I have aaah shamano 20 40 I want to put braid 30 lb n wana back up with mono but how much mono would I need so that the braid of 300 m fill up the rest of the spool??? Please leme know asap

  12. MJ

    Hi, I just got a nice pier, surf and catfish combo Okuma 10, rated up to 50lb. When getting 40 lb braided, I can’t find anywhere that will guide me on capacity of the reel, except up to 25lb (Okuma website). Any ideas?

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