Convert Monitor and TV Inches to Dimensions (Screen Size)

Screen Size Calculator

Calculate the width, height and area of a display based on screen size and aspect ratio.

Width 0 cm
Height 0 cm
Display area 0 cm²
💡 Tip: Screen size is measured diagonally from corner to corner.

Use this screen size calculator to find the actual width and height of monitors, laptops and TVs. Enter the display size and aspect ratio to calculate physical dimensions in centimeters.

How is screen size measured?

Screen size is measured diagonally from one corner of the display to the opposite corner.

How big is a 27-inch monitor?

A 27-inch 16:9 monitor is approximately 59.8 cm wide and 33.6 cm high.

Does a larger screen always mean a bigger display area?

Not necessarily. Aspect ratio affects the physical width, height and total viewing area.