Fish Weight Calculator
How to Calculate a Fish’s Weight Without a Scale
To determine a fish’s weight based on its length and girth, use the form above. Leave it blank if you are unsure of the fish’s girth, and it will be calculated for you.
Before releasing a fish, take a few quick measurements of it, and use the form to calculate its approximate weight.
The following fishing equation will yield an estimate that is within 10% of the actual weight, while no formula can ever fully replace an exact scale.
