The Water Resources Division's Surface Water Assessment Section oversees the protection of the quality of surface waters throughout the State of Michigan.
WEIGHT = 4.09 pounds Largemouth Bass Weight. The formula to calculate the weight for a Largemouth Bass that is 20 inches long and has a girth of 15 inches is as follows. Largemouth Bass have a shape factor of 1050. WEIGHT = LENGTH x GIRTH2 / SHAPE FACTOR. WEIGHT= 20 x (152) / 1050.
Size. In general, you could consider a six-pound largemouth to be a trophy fish in the north, whereas a 12-pound/5.4 kilograms largemouth in the south would not be uncommon. The average length is 18 inches/46 cm but the Florida Largemouth Bass may attain a length of 24 inches/61 cm or more.o figure, an exaggerated fish storyâ¦ The largest bass ever caught in Florida is actually 17.125 pounds/7.77 kilograms, still a respectable fish. They are not a long-lived fish with an average life-span of 7.5 years. The females have a maximum life-span of nine years, while the males only reach a maximum of six years.