RPM to CFM conversion

[JirikP]

My method of setting up cooling of pc components is to do it on open bench, set max temp for a part as i see fit and tune down the fan as much as possible to achieve the temperature, set Auto or steep manual curve and be done with it. The issue is how to set up case fans to keep the component fan fed. I use 3x 92 mm Noctuas on my GPU which are also one of main intakes in my case and 2x 140 mm as exhausts.
I would love to add some conversion to how much air is actually going to my case by the gpu so i can set the exhaust correctly on different fans sizes and rpms. Noctua provides somewhat ok CFM @ RPM numbers i can use and do simple interpolation for the whole rpm range.
Is it possible to add option for each found fan to convert RPM to CFM? Than i can do SUM and just set the exhaust as the same amount of air to be pushed out. It would be really easy to add offset so i can have little possitive pressure system to keep the dust mostly out.
Love your software btw. I used many fan control utilities and you are by far the best one yet.