Koi and Pond Fish Length to Weight Conversion by Werner 03/08

Please pay close attention to the following tables. You will notice that weight increases do not keep pace with size, i.e. a 10" fish weighs .05 pounds whereas a 30 " fish weighs 15.6 pounds, or more than 30 times as much.

This is especially important when feeding fish for maximum growth rates.

Size in Inches

Weight in pounds
6-7 Inches 0.18 Pounds
8-9 In. 0.24 lbs.
10-11 In.  0.5 lbs
12-13 In. 0.8 lbs
14-15 In. 1.3 lbs
16-17 In. 2.0 lbs
18-19 In. 3.0 lbs
20-21 In. 4.3 lbs
22 in. 5.4 lbs
23 in. 6.2 lbs
24 in. 7.3 lbs
25 in. 8.5 lbs
26 in. 9.5 lbs
27 in. 10.8 lbs
28 in. 12.3 lbs
29 in. 13.8 lbs
30 in. 15.6 lbs.

© Copyright 1992- 2008 Wernersponds     Site Design by: Blue Max