Confused about monitor sizes. Dimensions vs inches?

[WorldSyncError]

I'm looking to buy a new monitor which needs to be around 55cm in width. When looking at monitor specifications, there are two measurements provided; in inches and actual dimensions.


Using this monitor as an example: http://www.benq.us/product/monitor/EW2440L/specifications/
It's 24" (~60cm) but when you check dimensions it says the width is 545.66mm (55cm).

Common sense dictates I should be looking at the HxWxD dimensions, but I always thought the size in inches was the width.

So my question is, if I need a specific size monitor, should I only pay attention to the dimensions?

 

[Shektron]

The dimensions are the length, width, height of the TV or monitor casing. The screen size, usually in inches, the diagonal length of JUST the screen - not the bezels(plastic/metal portion on edges).

 

[madmatt30]

Exactly what Shrekton says .
Look at a 23 or 23.8 inch model with a slim bezel & you'll be good.

What's your country , budget , intended use ???