27" vs Dual 27" Monitor Size Comparison
Drawn to scale on your desk. Change any screen below and the drawing, specs and link update instantly.
14.4″ too wide / 60.0″
Screen A
23.5 × 13.2 in
Screen B
47.1 × 13.2 in
Quick add
Desk width
Spec sheet
Dimensions side by side
27″
2× 27″
Diagonal
27″
27″ ×2
Aspect ratio
16:9
16:9
Width
23.5″
47.1″
Height
13.2″
13.2″
Screen area
312 in²
623 in²
Area vs A
—
+100%
Typical resolution
2560×1440
2560×1440
Pixel density
109 PPI
109 PPI
Viewing distance
24–34″
24–34″
Dimensions are the visible screen area. Resolution and pixel density are typical for each size; check the exact model. Dual setups show the combined width of both screens.
Overlay
Screen area, stacked
A
23.5″ × 13.2″
312 in²
B
47.1″ × 13.2″
623 in²
The short answer
Adding a second 27-inch screen doubles your screen area and needs about 47 inches of desk width. Great for multitasking; a single 27 keeps the desk clear.
Key differences
What changes on your desk
01
The Dual 27" has 100% more screen area (623 vs 312 sq in).
02
The Dual 27" is 23.5″ (60 cm) wider.
03
Both screens are essentially the same height.
04
Placed side by side with small gaps, all of these screens together need about 73″ (184 cm) of desk width.