Need to know how to estimate weight

Discussion in 'Flathead Catfish' started by one_catfisher, Jul 12, 2008.

  1. one_catfisher

    one_catfisher New Member

    Messages:
    1
    State:
    il
    cought a flathead over 5 ft long bottomed out 65 lb scale would like to have a opinion on how to estimate weight
    :big_smile:
     
  2. arkrivercatman

    arkrivercatman New Member

    Messages:
    4,472
    State:
    KS
    There is a formula that will get you close but you will also need to know the girth. I dont know what it is though, sorry.
     

  3. LEROYDOZOIS

    LEROYDOZOIS New Member

    Messages:
    1,542
    State:
    Arizona
    my book says 50in. is 70.2lbs:crazy:

    you caught a close to 30 year old monster of the deep :eek:oooh:
     
  4. CountryHart

    CountryHart New Member

    Messages:
    10,914
    State:
    missouri
    Greg,welcome from missouri, and thats one big fish.
     
  5. river scum

    river scum New Member

    Messages:
    3,474
    State:
    hooterville indiana
    yeah, i wish i could say i was an expert on that bro, welcome to the b.o.c.!
     
  6. MRR

    MRR New Member

    Messages:
    4,947
    State:
    Louisiana,Mo.
    Welcome to the BOC and that was one nice fish no matter what it weighed in at. Great catch.
     
  7. waynesburgjay

    waynesburgjay New Member

    Messages:
    1,960
    State:
    Pennsylvan
    Welcome to the BOC Greg Awesome fish!
     
  8. Redneck1

    Redneck1 Guest

    All I can say is a catfish over 5ft long is one big 'ol catfish. That one's definetly worth braggin' about.
    :big_smile:
     
  9. fullstringer

    fullstringer Member

    Messages:
    108
    State:
    Indiana
    Sounds like a behemoth! Congrats, would love to see some photos if you have them! Welcome to the Brotherhood!
     
  10. el-de-saspamco

    el-de-saspamco New Member

    Messages:
    160
    State:
    Saspamco,Texas
    Hey Greg,
    Welcome to the B.O.C, a place where you're going to learn alot and maybe share alot.

    I did a little research on your question, I remembered that I seen this method done on the Roland Martin show here's a link:

    http://www.fishingwithrolandmartin.com/tips/fish_calculator.htm

    hopes this helps everyone, it did me.

    Rubes
     
  11. AZflats

    AZflats New Member

    Messages:
    2,535
    State:
    Peoria, Arizona

    * I don't think that calculator works for flathead catfish.. Maybe for bass or other game fish..
    * Try this calcultor... The second line which includes sharks seems the most accurate for flatheads...


    http://www.fishdreams.com/calculator.all_species.html
     
  12. woodchucker

    woodchucker New Member

    Messages:
    128
    State:
    La Quinta,Ca
    Using Andys link a flathead over 5 ft long is over 90lbs,thats is crazey big.Using the same formula my avatar went over 69lbs at 48x34.Thanks for that link Andy.
     
  13. rockfordflathunter

    rockfordflathunter New Member

    Messages:
    142
    State:
    rockford,illino
    I have a conversion chart specific for flatheads just dont know how to share it?
     
  14. rockfordflathunter

    rockfordflathunter New Member

    Messages:
    142
    State:
    rockford,illino
  15. rockfordflathunter

    rockfordflathunter New Member

    Messages:
    142
    State:
    rockford,illino
    conversion chart
     
  16. AZflats

    AZflats New Member

    Messages:
    2,535
    State:
    Peoria, Arizona
    Hey Billy,
    That chart put my 53 x 32 inch flathead @ 67 lbs... I think that is pretty accurate.

    * But I think you would agree that a 60 inch fish would definetly be close to 90 lbs..
    ~A
     
  17. DTro

    DTro Active Member

    Messages:
    243
    State:
    Minnesota
    I actually put together that chart above (that Erich linked) after documenting a very large sample of flatheads over the past few years.

    This year alone I've checked that formula on probably close to 200 flatheads.

    Generally it has a tolerance of +/- 3lbs, but in most cases closer to +/- 1 lb.

    An accurate measurement is key.

    That's a great fish you caught there congrats!
     
  18. rockfordflathunter

    rockfordflathunter New Member

    Messages:
    142
    State:
    rockford,illino
    Awsome job on the chart dtro it has een right on on everything this year give or take a few ounces on my scale that is a great tool!