Bluegill Length To Weight Conversion Chart

Bluegill Length To Weight Conversion Chart

Bluegill Length To Weight Conversion Chart

Several methods are available to estimate the weight of a fish. Some use length as well as girth measurements. Weight also can be estimated using only length measurements based on relationship between length and weight. Length-weight equations can be developed for specific waters, regions (e.g., states), or for a particular species.

Formulas containing length as well as girth are often most accurate for estimating weight, because the fatness or plumpness of the fish is accounted for. If only length is available, the most accurate weights often are estimated from length-weight relationships for specific waters or regions. For instance, in some waters fish might be relatively "skinny," and the weight estimate might be overinflated if based on a formula created from data on a water body where fish are "fat" or even "normal." That's why adding girth to the formula can help with accuracy. Formula's containing girth, however, also may not be as accurate as we'd like, because of inherent differences in the shape of fish and finding the right adjustment factor (or "shape" factor) to use in the formula. And it's important to measure girth carefully, and at the fish's fattest point, as girth estimates affect weight estimates powerfully.

One easy way to estimate fish weight is through the use of standard length-weight formulas. Species-specific formulas, called standard-weight equations, have been developed for dozens of fish species by fishery biologists to describe the standard growth form of a species as a whole. These relationships often are used to assess body condition (the relative weight or plumpness of a fish), which provides an index of a fish's well-being, such as whether there are forage shortages or surpluses, and can sometimes reflect fish growth rate.


These standard length-weight formulas are often developed using thousands of fish from hundreds of populations across the range of a species, so they describe the "general" growth form of that species. For instance, the equation for black crappie was developed using over 20,000 fish across a range of sizes from 175 populations across the geographic range of black crappie.


*An important thing to keep in mind is that these standard length-weight formulas describe fish in "above-average" condition. In fact, the weights in the tables represent the 75th-percentile in the samples for that particular length, and are not average weights. In other words, if you lined up 100 random bass of the same length in order of weight, and those bass were a good representation of the range of weights for that length, the weight provided in the table would be for the 75th heaviest fish. While it might have made more sense to use the median weight for these formulas, fishery biologists decided to go with the 75th percentile so that the standard weight at a given length was an above-average or "ideal" target to shoot for in terms of body condition. So, if your fish appears plump and healthy, the weights from the table should be relatively close. If your fish is skinny to average, it will weigh less, and if very plump and remarkably "fat" it will weigh more. Just make an adjustment. No formula is 100-percent accurate, but if you have only length and not girth, this should help get you in the ballpark. Your state fishery agency may have standard weight tables based on regional data posted on their website. These formulas use total length of the fish, measured from the tip of the snout to the tip of the tail fin when compressed.



Bluegill
5 in0.09 lb
6 in0.16 lb
7 in0.27 lb
8 in0.42 lb
9 in0.62 lb
10 in0.88 lb
11 in1.21 lb
12 in1.61 lb
13 in2.10 lb

Get Your Fish On.

Plan your next fishing and boating adventure here.

GET THE NEWSLETTER Join the List and Never Miss a Thing.

Recommended Articles

See More Recommendations

Popular Videos

The Scoop on Garmin

The Scoop on Garmin's New Force Trolling Motors

Why did Garmin's new Force trolling motor win a Best of Show category award at the 2019 ICAST Show in Orlando? OSG's Lynn Burkhead gets all of the scoop on the amazing features that come with Garmin's first entry into the trolling motor market.

13 Fishing Omen Black Baitcasting Rod

13 Fishing Omen Black Baitcasting Rod

Multiple time FLW Costa winner Jessi Mizell is no stranger to catching big Florida bass on a popping frog. As he tells OSG's Lynn Burkhead, with the new 13 Fishing Omen Black baitcasting rod, the job just got easier.

Minus System Crankbaits for Largemouths

Minus System Crankbaits for Largemouths

In-Fisherman Editor-In-Chief, Doug Stange demonstrates the use of DT Fat Minus crankbaits for largemouth bass.

Spider Rig Crappies

Spider Rig Crappies

Doug Stange employs one of the most effective crappie systems ever.

See More Popular Videos

Trending Articles

Catfish are simple creatures that can be caught using the best catfish rigs. Catching them is simply a matter of putting a good bait in the right in front of them. Catfish

8 Best Catfish Rigs - When, Where and How to Use Them

In-Fisherman

Catfish are simple creatures that can be caught using the best catfish rigs. Catching them is...

Everything you need to know about popular catfish species and how to catch them on proven riggings. Catfish

All About Catfish

Rob Neumann

Everything you need to know about popular catfish species and how to catch them on proven...

It was an August evening and I was wading the flats in Brewster, MA with my cousin. Here you can Other Fish

Must-Have Striped Bass Tackle

Rick Bach - May 04, 2017

It was an August evening and I was wading the flats in Brewster, MA with my cousin. Here you...

To guide your carp quest, we've lined up the best carp baits that are easy-to-fish natural baits and commercial options. Other Fish

Best Carp Baits Today

Dan Johnson - June 29, 2018

To guide your carp quest, we've lined up the best carp baits that are easy-to-fish natural...

See More Trending Articles

More Panfish

The old expression Panfish

Top Panfish Tackle

Steve Quinn - July 09, 2018

The old expression "Luck is where preparation meets opportunity" certainly pertains to...

Catch those weary crappie with this technique! Panfish

Dock Shooting Crappies

Matt Straw - July 03, 2018

Catch those weary crappie with this technique!

Deep water has undeniable appeal to the lake's largest specimens.
It's always surprised me that as the spawn season wraps, a lion-share of anglers forget about Panfish

Tactics for Summer Crappie and Bluegills

Cory Schmidt - June 26, 2018

Deep water has undeniable appeal to the lake's largest specimens. It's always surprised me...


Scooping out nests, laying eggs, warding off nest invaders, staring down or dodging toothy Panfish

Find Your Biggest Bluegills During Summer

Matt Straw - July 06, 2018

Scooping out nests, laying eggs, warding off nest invaders, staring down or dodging toothy

See More Panfish

GET THE MAGAZINE Subscribe & Save

Digital Now Included!

SUBSCRIBE NOW

Give a Gift   |   Subscriber Services

PREVIEW THIS MONTH'S ISSUE

GET THE NEWSLETTER Join the List and Never Miss a Thing.

Get Digital Access.

All In-Fisherman subscribers now have digital access to their magazine content. This means you have the option to read your magazine on most popular phones and tablets.

To get started, click the link below to visit mymagnow.com and learn how to access your digital magazine.

Get Digital Access

Not a Subscriber?
Subscribe Now