Does anybody know if there is a length to weight scale anywhere online? the type of thing where you measure the length of a trout and it gives an approximate weight for that measurement?

dont know how accurate this is but here.....

Fish Weight Calculator

bob

cheers bob but i was looking for a actual printed chart or a table that can be printed out (if one exists) rather than a website that you enter the details on (cant bring the pc with me fishing!!) i should have been clearer in my original post about that, but thank you for your help.

Frost and Brown in The Trout give this.

Weight in pounds
Length in inches³ =0.00427

so Weight in pounds would be L x L x L x 0.000427 (L = Length)

Using that formula a ten inch fish would be about 6oz.

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Sandy
Carried it in full, then carry it out empty.

By the time you have measured the length and the girth of the fish, it's quicker to weigh it !
I am looking to get a net with built in scales, makes it quicker still.
I carry scales, and if I want to weigh the fish, I weigh it in the net. I know how much my net weighs when wet.
I have seen various formulae for calculating fish weight according to length, but surely they can only be a best guess?

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