Bob has a link here on the site to check too. The Steelhead / Salmon Weight Calculator

Using the info from your 10/20 post and that formula, that fish was 9.5 pounds. I was talking with DD last night, I thought it looked like an 8 or 9 pounder, didn't look over 10 unless you're over 300! JK!!!

The digital scales are pretty accurate and very humbling! A 15-20 pounder weighed on a digital scale is a really nice fish, and they LOOK bigger than they actually are. Usually by about 1/3 in my experience with estimating vs weighing. I've seen a lot of 15 pounders called 20, I've even done it, but when weighed the truth is humbling!