LR Question on Final File size

[rollsman44]

I cant seem to figure this out. I am using a Nikon D810 I import my images from my folder on the desktop to LR Classic latest version
I make my adjustments and now Export the files to a NEW folder on my desktop.The orig file size is 20mpix and the final file size after I export it is 15mpix. What I do is:In Exporting I choose Fit to size and select 20mpix in the box. Am I doing something wrong? I would like to get the 300 mix size.
Is there a better way? Thank you

 

[cjb]

What does “300 mix” mean?

If you are wanting to enlarge the output size, use photoshop.

 

[pegelli]

Or if you want to get the same size (same mpix as the original image, no enlargement or reduction) uncheck the "Resize to Fit" in the Image Sizing portion of the export dialog.

 

[rollsman44]

If I uncheck the Box do I enter anything in the boxes or leave them blank? Thank you

 

[pegelli]

The "dimension" boxes will be greyed out and you won't be able to edit them (and any greyed out number in there will have no effect), but you can still enter the resolution you want in the other field of that section.

 

[rollsman44]

Awesome. Thank you MUCH Dennis