TV Screen Size Converter
Convert a 16:9 screen diagonal into approximate width and height.
How to Use the TV Screen Size Converter
Enter a TV diagonal and aspect ratio to estimate screen width and height. This is useful when checking whether a display will fit a wall, cabinet or stand.
Practical Example
A 55-inch 16:9 screen is about 47.9 inches wide and 27.0 inches high.
Factors That Affect TV Dimensions
Bezels, stands, speaker housings and manufacturer design add to the physical dimensions beyond the active screen area.
Frequently Asked Questions
How is TV size measured?
TV size normally refers to the diagonal of the visible screen.
Does a 55-inch TV have 55 inches of width?
No. The 55-inch measurement is diagonal.
Why check the aspect ratio?
Width and height depend on both diagonal size and aspect ratio.
Understanding TV Screen Dimensions
TV size is normally quoted as the diagonal screen measurement. Width and height depend on the aspect ratio, so a 16:9 television with a given diagonal has predictable approximate dimensions before bezels are included.
The converter estimates panel dimensions rather than the full cabinet size. For furniture, wall mounts or recesses, check the manufacturer’s exact width, height, stand depth and mounting-hole specifications.
Conversion Method and Practical Limits
For a fixed aspect ratio, screen width and height can be derived from diagonal size using right-triangle geometry. The advertised diagonal normally measures the viewable panel, while bezels and chassis dimensions are not included.