Screen Size in Centimeters — TV, monitor, tablet and phone sizes converted from inches to real width and height
Convert the inch size of a TV, PC monitor, tablet or phone to its diagonal, width and height in centimeters at 16:9, with a chart of common sizes such as 43, 55 and 65 inches. Check whether a TV fits your Japanese apartment before you buy.
Pick a category to see real dimensions in centimeters and what each size is good for.
Screen Size Chart: tips and things to know
- The comfortable viewing distance is about three times the screen height, or about 1.5 times for 4K.
- For desk work 24-inch monitors are the norm; creative work tends toward 27 inches and up.
- The same diagonal gives different widths and heights depending on the aspect ratio (16:9, 21:9 and so on).
- Product dimensions include the bezel, so the set is a few centimeters larger than the screen figures here.
- Japanese apartments are small: a 43-inch TV suits a 6-jo (10 m²) room, and 55 inches is plenty for most living rooms.
How to use the Screen Size Chart
Choose a category
TV, PC monitor, tablet or smartphone.
Read the table
Each size lists the diagonal, width and height in centimeters and a typical use.
Calculate any size
Type any inch figure in the box below the table.
Screen Size Chart FAQ
How many centimeters is an inch?
2.54 cm. The inch figure for a TV or monitor is the diagonal of the screen.
What does the inch figure measure?
The diagonal from corner to corner, not the width. Width and height depend on the aspect ratio.
What TV size fits my room?
Roughly 32 to 40 inches for a 6-jo room, 43 to 50 for 8 jo, and 55 or more for 10 jo and up. With 4K you can sit closer, so many people go one size up.
How wide is an ultrawide monitor?
A 34-inch 21:9 ultrawide is about 80 cm wide; a 49-inch 32:9 super-ultrawide is about 120 cm. Check your desk width.