Summary

In comparison to a 40 inch 16x9 TV a 20 inch 16x9 is...

50% smaller diagonally and 75% smaller by area as a 16x9 display.

50% smaller diagonally and 75% smaller by area as a 4x3 display.


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Screen Size Comparison

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Aspect
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Size    


20 inch 16x9 display vs 40 inch 16x9 display



Buy From 20 inch 16x9 40 inch 16x9
Amazon20 Inch TV40 Inch TV
  
StatsUse cm 20 inch 16x9 40 inch 16x9
Width17.43 inches34.86 inches
Height9.81 inches19.61 inches
Area170.92 inches²683.68 inches²
As a 4:3 Display16.34 inches32.68 inches
As a 16:9 Display20.00 inches40.00 inches
As a 2.35:1 Display18.94 inches37.89 inches
  
In Comparison 20 inch 16x9 40 inch 16x9
Actual Aspect Ratios50.00% smaller diagonal
75.00% smaller area		100.00% larger diagonal
300.00% larger area
As a 4:3 Display50.00% smaller diagonal
75.00% smaller area		100.00% larger diagonal
300.00% larger area
As a 16:9 Display50.00% smaller diagonal
75.00% smaller area		100.00% larger diagonal
300.00% larger area
As a 2.35:1 Display50.00% smaller diagonal
75.00% smaller area		100.00% larger diagonal
300.00% larger area
  
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