Nice and useful little thing. The instructions however forgets to mention the windows sensitivity bar thingy. I had to test which one was the correct one and turns out it's the 6/11. Just thaught it could be helpful for others to know. Alhtough it would be an easy calculation to add into the calculator.
Windows - Multiplier
1/11 - 0.0625
2/11 - 0.125
3/11 - 0.25
4/11 - 0.5
5/11 - 0.75
6/11 - 1
7/11 - 1.5
8/11 - 2
9/11 - 2.5
10/11 - 3
11/11 - 3.5