How do you make backgrounds fit?

I own a club and was trying to fit a background for the New year's. But whenever I try to upload it starts to get zoomed in and it gets blurry. I've been trying to change the size and pixels but non of them worked. I'm talking about it as a club's background and not a personal background.

idk

Let me try ok?

https://www.chess.com/club/check-tube You can try it here, I will make you an SA. I made an club to use it as a test.

you need a higher quality image. Yours is 270 by 270, which is very tiny especially for a background, and it would help if the image was a rectangle

I've been trying to make it 175 by 175 and their all squares.

Umm you must check the places you want the picture for it whether rectangle ( banner ) or square (Profile photo) then adjust image ratios (Dimensions) and px ( Pixels ). The higher the pixels are , the higher resolution you get.

You probably want your original image to be at least 800x800

1200 px wide is probably better.

Alright, let me try them.

What should the KB be? If anybody know's a good website to change the size and pixels than let me know. https://imagecompressor.11zon.com/en/compress-jpg/ I've been just using this one.

Pretty sure the file size has to be under 2MB

Is 1.7 MB good enough?

probably

background has to be 1920 x 1080