Calculate contour area in CFD Post
 

I have to calculate are of contour on a surface. i can create an user surface with the contour value and calculate area. But there are two separate contours of same value and i want to calculate it separately ( see picture).
Is there any way to do it?

Define a contour of X=(some value) to split the two regions into separate contours. Then use another user surface on that contour to get the area of the region you are interested in.