Fish weight estimator
Kona Hawaii blue marlin

Girth is measured in inches at the widest part (circumference) of the fish's body.

Length is measured in inches from the fish's lower jaw to the tail's fork.

Enter the girth of the fish and the length of the fish.
Press "Compute" to see weight.
Press "Clear Fields" to start over.

  GIRTH in INCHES

  LENGTH in INCHES

  WEIGHT in POUNDS

Give our Big Game Fish Weight Estimator a try. If you measure accurately, you will be surprised how close your estimate gets to the actual weight at the scales. Click the Calculator button below and print out the take along copy and surprise your Captain and crew with the accuracy of your estimates.

Weight Estimator PDF
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