Blog and Profile Cover Image Sizes?

[UncrownedGuard]

Hello,

I have found numerous topics about this two items, but no answer to the correct size of the image.  Is there a set px size that would make the perfect size or are these a "fluid" box and things will fit better depending on the theme and screen size?  Obviously, I know any image technically works, but is there a "perfect" size.

Thank-you

[JoshB84]

I was wondering the same thing. So far from what I have seen others say. Facebook has a fixed image size for their covers. So the cover will look the same on different displays.

I think the covers here are not fixed so the cover will look different as your display size changes.

[JTrollerb123]

Also wondering!  Should be a consistent size to use regardless of device - Has caused confusion with my users

[Jamer]

I have the same question and would also like to know what size the header images is for the Calendar 

[opentype]

There is no specific pixel size. Just upload an image that doesn’t look too bad when parts are cut off.