Géométrie d'AffichageW² + H² = D²
Calculateur de Dimensions et Diagonale TV
Convert any manufacturer diagonal measurement into true panel width, height, and viewable square area before buying mounts or media cabinets. Solving general triangles or missing legs? Try our root Pythagoras equation solver.
16:9, 21:9, 32:9, 16:10 & 4:3Exact Radical Normalization (√337)Inches & Centimeters Toggle
Result updated: 65 in screen width is 56.65 in, height is 31.87 in, area is 1,805.3 square in.
Calculateur de Dimensions et Diagonale TV
w = (rw · d) / √(rw² + rh²) · h = (rh · d) / √(rw² + rh²)
Select a common screen size preset or enter custom diagonal and aspect ratio numbers.
Aspect Ratio
Largeur d'écran
56.65 in
Hauteur d'écran
31.87 in
Surface d'affichage
1,805.3 in²
Tailles de Téléviseurs Courantes (Largeur × Hauteur)
1. Compute Aspect Ratio Diagonal Norm
norm = √(16² + 9²) = √337 ≈ 18.3576
2. Solve Width from Pythagorean Scale Factor
w = (16 × 65) / 18.3576 ≈ 56.65 in
3. Solve Height & Verify Area
h ≈ 31.87 in, Area ≈ 1,805.34 in²
| TV Diagonal (16:9) | Width (in) | Height (in) | Area (in²) |
|---|---|---|---|
| 43 in | 37.5 in | 21.1 in | 790 in² |
| 50 in | 43.6 in | 24.5 in | 1,068 in² |
| 55 in | 47.9 in | 27 in | 1,293 in² |
| 65 in | 56.7 in | 31.9 in | 1,805 in² |
| 75 in | 65.4 in | 36.8 in | 2,404 in² |
| 85 in | 74.1 in | 41.7 in | 3,087 in² |
Tailles de Téléviseurs Courantes (Largeur × Hauteur)
| Class Diagonal | 16:9 Largeur d'écran | 16:9 Hauteur d'écran | 16:9 Surface d'affichage | 21:9 Ultrawide (W × H) |
|---|---|---|---|---|
| 43" | 37.5" | 21.1" | 790 in² | 39.5" × 16.9" |
| 50" | 43.6" | 24.5" | 1,068 in² | 46" × 19.7" |
| 55" | 47.9" | 27" | 1,293 in² | 50.6" × 21.7" |
| 65" | 56.7" | 31.9" | 1,805 in² | 59.7" × 25.6" |
| 75" | 65.4" | 36.8" | 2,404 in² | 68.9" × 29.5" |
| 85" | 74.1" | 41.7" | 3,087 in² | 78.1" × 33.5" |
How Screen Diagonals Map to Width & Height
TVs and monitors are always sold by corner-to-corner diagonal screen glass size D. Knowing the aspect ratio W : H (such as 16 : 9), the ratio diagonal norm equals √(16² + 9²) = √337 ≈ 18.3576.
Width = D × (W / √(W² + H²)) | Height = D × (H / √(W² + H²)) | Area = Width × Height