Summary

In comparison to a 40 inch 21x9 TV a 42 inch 16x9 is...

31% larger diagonally and 71% larger by area as a 16x9 display.

31% larger diagonally and 71% larger by area as a 4x3 display.


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Screen Size Comparison

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42 inch 16x9 display vs 40 inch 21x9 display



Buy From 42 inch 16x9 40 inch 21x9
Amazon42 Inch TV40 Inch TV
  
StatsUse cm 42 inch 16x9 40 inch 21x9
Width36.61 inches36.77 inches
Height20.59 inches15.76 inches
Area753.76 inches²579.31 inches²
As a 4:3 Display34.32 inches26.26 inches
As a 16:9 Display42.00 inches32.14 inches
As a 2.35:1 Display39.78 inches39.96 inches
  
In Comparison 42 inch 16x9 40 inch 21x9
Actual Aspect Ratios5.00% larger diagonal
30.11% larger area
4.76% smaller diagonal
23.14% smaller area
As a 4:3 Display30.68% larger diagonal
70.77% larger area
23.48% smaller diagonal
41.44% smaller area
As a 16:9 Display30.68% larger diagonal
70.77% larger area
23.48% smaller diagonal
41.44% smaller area
As a 2.35:1 Display0.43% smaller diagonal
0.87% smaller area
0.44% larger diagonal
0.87% larger area
  
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