The Dead by Daylight calculator could be made more accurate using a config file.
%LOCALAPPDATA%/DeadByDaylight/Saved/Config/WindowsClient/Input.ini
AxisMappings=(AxisName="LookUp",Scale=-1.000000,Key=MouseY)
AxisMappings=(AxisName="Turn",Scale=1.000000,Key=MouseX)
Changing the "Scale" to 0.333333 on both settings and then converting from 3.6 on Source games made my usually low sensitivity of 1.2 possible, when it normally isn't.
It'd be nice to see this integrated into the calculator for 1:1 scaling by having the Scale be a very specific number instead of relying entirely on in game settings.