formula to make a monitor size appear as another size?

[philheath]

lets say 27 inch 1440p make it appear 24 inches (no scaling in nvidia) with black borders around

27/24 = 1.125

2560 / 1.125 = 2276

1440 / 1.125 = 1280

is this correct? because chatgpt gives different answers, actually 2 different

what is the correct method?

i am so confused, because i even saw 27 the new asus 360hz 1440p has a 25 inch mode and its 2368 x 1332, the diagonal size is really 26.8 inches according to rtings website, but i dont see how it gets that resolution, unless its not exactly 25 inches

 

highly confusing, and im not good at maths

 

[DPI Wizard]

ChatGPT and math doesn't go well together unless you use a plugin 

32 minutes ago, philheath said:

i am so confused, because i even saw 27 the new asus 360hz 1440p has a 25 inch mode and its 2368 x 1332, the diagonal size is really 26.8 inches according to rtings website, but i dont see how it gets that resolution, unless its not exactly 25 inches

They use this equation as you suggested (but not with exactly 27 and 25):

Horizontal: https://www.wolframalpha.com/input?i=2560%2F(27%2F25)

Vertical: https://www.wolframalpha.com/input?i=1440%2F(27%2F25)