Monitor size?

So ive been searching my monitor size because i would like to get another one, i know i could measure it by hand although im not to trustworthy by thy own hand. I looked up the name and codes etc of the monitor however it shows a 24 inch and a 23'5 inch i believe. When i go to display properties there is nothing there either. If you've got any help or tips it'd be much appreciated!

What's the model of it? most monitors have it printed right on the bezel(or edge) of the monitor. THen you can look it up.

i just tested it and a 22inch screen is the same length (diagonally) as the corsair k60+m65. :)