40 inch TV dimensions
A 40-inch TV screen is about 88.6 cm wide and 49.8 cm tall (34.9 × 19.6 inches). The 40″ is the diagonal — 102 cm corner to corner.
88.6 cmwidth
49.8 cmheight
102 cmdiagonal
40″ TV in cm and inches
| Measure | cm | inches |
|---|---|---|
| Width | 88.6 cm | 34.9" |
| Height | 49.8 cm | 19.6" |
| Diagonal | 102 cm | 40" |
This is the bare 16:9 screen. The full set adds roughly 1–3 cm of bezel per side and 5–8 cm of stand height. Check the exact model before buying a unit or mount.
Frequently asked questions
How wide is a 40 inch TV in cm?
The screen is about 88.6 cm wide; a little more with bezels.
What are the dimensions of a 40 inch TV?
The 16:9 screen is 88.6 × 49.8 cm (34.9 × 19.6 in). The 40-inch figure is the diagonal.
Is a 40 inch TV 40 inches wide?
No — that's the diagonal. Width is about 34.9 inches (88.6 cm).