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Bass Length To Weight Conversion Chart

by Matt Straw   |  October 22nd, 2011 3

Largemouth & Smallmouth Bass

Length to Weight Conversion Chart

Length (inches)

Weight (pounds)

Length (inches)

Weight (pounds)

10

.63

17.5

3.35

10.5

.72

18

3.64

11

.83

18.5

3.95

11.5

.95

19

4.28

12

1.08

19.5

4.63

12.5

1.22

20

5

13

1.37

20.5

5.38

13.5

1.53

21

5.78

14

1.71

21.5

6.21

14.5

1.90

22

6.65

15

2.10

22.5

7.11

15.5

2.32

23

7.60

16

2.56

23.5

8.11

16.5

2.80

24

8.64

17

3.07

24.5

liar


The basic formula for calculating the weight of a largemouth bass or smallmouth bass is: length x length x length divided by 1600.

 

 

  • ddubois861

    i believe the formula is length times girth

  • zack piche

    I’ve caught an official 25 inch bass… 9.8 lbs

  • Colin Wright

    I’d say it all has a LOT to do with the girth of the bass. I’m here because I caught a 21″ bass today. It was a nice fish, but it wasn’t particularly chunky — and it wasn’t any 5.78 pounds. I would say about four.

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