How do I calculate the resolution of different amounts of monitors?

Solution
2x 1920 = 3840

-> 2 monitors = 3840x1080

3x 1920 = 5760

-> 3 monitors = 5760x1080

The heights remain the same (except if you place the monitors on top of each other), the width can be added together. Wasn't that hard, was it?

However most games probably won't support resolutions like that but for CAD software it will be quite nice.
2x 1920 = 3840

-> 2 monitors = 3840x1080

3x 1920 = 5760

-> 3 monitors = 5760x1080

The heights remain the same (except if you place the monitors on top of each other), the width can be added together. Wasn't that hard, was it?

However most games probably won't support resolutions like that but for CAD software it will be quite nice.
 
Solution
A monitor's resolution is measured by the number of pixels across, horizontally and down, vertically the screen. So a monitor with a resolution of 1920x1080 has 1920 pixels going from left to right and 1080 pixels going from top to bottom. If you have two displays sitting next to each other, then you would simply double the horizontal pixel count (1920x2 or 3840). If you had three displays, you'd triple the pixel count (1920x3 or 5760). Since the three displays are spanned horizontally, the vertical pixel count doesn't change from 1080.

-Wolf sends