We all learn from experiences...that's how I ended up doing some changes...I use that same crosstitch.com calculator when I want to take a pattern to either make it larger or smaller than the original. In the past, I had one pattern that "over 2" was going to be like 2 1/2 feet HIGH, so started
"playing" with the numbers. What is so nice about this calculator, it will tell you 2 things: the finished PATTERN size and the size fabric you need for it.