42-inch (106.7 cm) monitor dimensions

A 42-inch display changes shape depending on aspect ratio. Use these measured dimensions to estimate desk fit, screen area, and adjacent-size or ultrawide alternatives.

A 42-inch 16:9 monitor is about 36.6 inches wide and 20.6 inches tall, before bezels or the stand. To fill a relaxed 30-degree view, sit about 68 inches (173 cm) away; about 50 inches (127 cm) fills an immersive 40 degrees. Large monitors are mostly about desk span, viewing distance, and whether you are buying width, height, or both. Check the aspect-ratio rows before trusting the diagonal.

Compare nearby screens or open the calculator.

Measured by shape

Same diagonal, different footprint

16:9 standard

Width
36.61 in (93 cm)
Height
20.59 in (52.3 cm)
Diagonal
42 in (106.7 cm)
Area
753.8 sq in (4863 cm²)

21:9 ultrawide

Width
38.6 in (98.1 cm)
Height
16.54 in (42 cm)
Diagonal
42 in (106.7 cm)
Area
638.7 sq in (4121 cm²)

32:9 super ultrawide

Width
40.43 in (102.7 cm)
Height
11.37 in (28.9 cm)
Diagonal
42 in (106.7 cm)
Area
459.8 sq in (2966 cm²)