You should start catching bigger fish "Fogged In" then you would know! HAHA The fish was weighed and measured twice using two different scales. I was surprised at the weight as well thought it was around 20. I didn't measure the girth , but 63cm would not be out of the question. She was a girthy lady. Here is a steelhead photo for a example of weight -girth vs size. 40.5 inches length with a 24 inch girth, a 30.1 pound steelhead.