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40 iNCH Television Viewing Distance and Screen Dimensions
For 40″ diagonal televisions, a viewing distance (from screen surface to eyes) range of 4.0′ (or 48″) to 6.0′ (or 72″) is recommended for the best TV viewing experience. If your regular viewing distance will be more than that, you should at least consider a larger screen size TV.
Viewable rectangular screen dimensions for an exactly 40″ diagonal TV are 34.9″ wide by 19.6″ high. Actual screen width and height may vary by tenths of an iNCH either more or less, as TV screen size classes are rounded to the nearest whole iNCH.
Shop for 40 iNCH TV
Amazon Fire TV 40 iNCH Class 2-Series 1080p Full HD smart TV with Fire TV Alexa Voice Remote, stream live TV without cable [at Amazon]
Hisense 40QD4QF 40 iNCH Class QD4 Series QLED 1080p Full HD Fire TV [at Amazon]
Hisense 40A4NF 40 iNCH Class A4 Series 1080p Full HD Fire TV [Hisense link] [at Amazon]
Roku 40R3C5 40 iNCH Class Select Series 1080p Full HD Smart Roku TV [Roku link] [YouTube video] [at Amazon]

Samsung UN40F6000F 40 iNCH Class F6000F Series 1080p FHD Smart TV [Samsung link] [at Amazon]
Sylvox MT40G3KHCA 40 iNCH Class Marine Series 1080p Smart Google 12V RV TV [Sylvox link] [at Amazon]
Sylvox RT40G3KHFA 40 iNCH Class Vehicle Series 1080p Smart Google 12V RV TV [Sylvox link]
TCL 40S350F 40 iNCH S3 Class 1080p FHD LED Smart TV with Fire TV [TCL link] [YouTube video] [at Amazon]
TCL 40S350G 40 iNCH S3 Class 1080p FHD HDR LED Smart TV with Google TV [TCL link] [YouTube video] [at Amazon]
Page last updated 08/09/2025.
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