1080p: 800 DPI = 1440p: ??? DPI

[J0Y]

Hi!

So basically, I used to use a 23 inch 1080 x 1920 monitor at 800 DPI but recently moved to a 27 inch 1440 x 2560 monitor. I'm trying to figure out what the equivalent sensitivity of 1080 x 1920 @ 800 DPI would be in 1440 x 2560.

1080 x 1920 pixel count is 2,073,600 and 1440 x 2560 is 3,686,400 which roughly makes 1440 x 2560 1.6 times bigger than 1080 x 1920.

Am I correct in thinking the conversion would be 800 x 1.6? Making 1280 DPI at 1440 x 2560 the equivalent of 800 DPI at 1080 x 1920.

 

[rgd1101]

dpi is dot per inch.

 

[TJ Hooker]

Where are you seeing that DPI value?

Display pixel density is usually measured in PPI (although sometimes PPI and DPI are used interchangeably), and is a function of display resolution and size. As in, a given size/resolution will give you a certain PPI which you have no control over.

A 23" monitor at 1080p would give you a PPI of 95.8

https://www.omnicalculator.com/other/pixels-per-inch


Edit: Ohhh, are you talking about mouse DPI? I'm not very familiar with that, but from what I can find with a quick bit of googling the DPI is how many pixels the cursor will move if the mouse is moved one inch. In that case the conversion factor would be 1440/1080 = 1.33. So a DPI of 1067 with your 1440p monitor would be equivalent to a DPI of 800 with a 1080p monitor.

Assuming you want the mouse to move the same proportional distance on the new screen for the same amount of mouse travel. I.e. with either a DPI of 1067 @ 1440p or 800 @1080p, moving the mouse one inch to the left would move your cursor 42% of the way across the screen to the left.

 

[J0Y]

Your assumption was correct, my apologies, I should have explained it better. I was indeed trying to figure out the mouse DPI I would need at 1440p that was equal to the same as 800 mouse DPI at 1080p.

Thank you