Yes, I am using raw mouse input. The calculations give me a sensitivity of 0.101522 for BF3. I just entered this in the profile and with this sensitivity a 360 takes about 16 cm as well. It seems the conversion is thus correct, but not in line with the number of centimeters it should take according to the calculator.
Edit: Derp, I think I finally figured out what was going on. Apparently my DPI switcher goes one level higher on the desktop than it does ingame. I thought I was playing with 1500 DPI (which is about 16cm for a 360), but apparently I was playing at 1000 DPI (16 cm for a 360). I thouhgt lowering my DPI with two clicks was 1500, but this turns out to be 1000. Anyway, thanks for great your tool. Now I can enjoy BF3 with the same sensitivity.