Calculadora de Proporção de Tela
Insira qualquer diagonal, largura ou altura para calcular instantaneamente todas as dimensões da tela.
1. Select Aspect Ratio
2. Enter Any Dimension
Diagonal, Width, or HeightPopular sizes:
Optional: Calculate Pixel Density (PPI) & Megapixels▼
Calculated Dimensions
Interactive Visualizer
Simulate black bars when watching different video ratios on this display:
Standard Displays Quick Guide
16:9 Standard| Diagonal | Width (in / cm) | Height (in / cm) | Area |
|---|---|---|---|
| 24″ | 20.9″ (53.1 cm) | 11.8″ (29.9 cm) | 246 sq in |
| 27″ | 23.5″ (59.8 cm) | 13.2″ (33.6 cm) | 312 sq in |
| 32″ | 27.9″ (70.8 cm) | 15.7″ (39.8 cm) | 438 sq in |
| 55″ | 47.9″ (121.8 cm) | 27.0″ (68.5 cm) | 1,293 sq in |
| 65″ | 56.7″ (143.9 cm) | 31.9″ (80.9 cm) | 1,805 sq in |
| 100″ | 87.2″ (221.4 cm) | 49.0″ (124.5 cm) | 4,272 sq in |
Mathematical Formulas & Step-by-Step Derivation▼
Screen dimensions are calculated using the Pythagorean Theorem (W² + H² = D²) combined with the ratio proportion W / H = Rw / Rh:
1. Screen Width from Diagonal (d) and Ratio (w:h):
Width = d × w ÷ √(w² + h²)2. Screen Height from Diagonal (d) and Ratio (w:h):
Height = d × h ÷ √(w² + h²)3. Screen Area:
Area = Width × Height4. Pixel Density (PPI):
PPI = √(Horiz_px² + Vert_px²) ÷ Diagonal_inOptimal Viewing Distance: SMPTE recommends a 30-degree field of view for mixed multimedia (Distance ≈ Diagonal × 1.62), while THX recommends a 40-degree field of view for cinematic immersion (Distance ≈ Diagonal × 1.2).
FAQ
Como calcular a proporção da tela?
Divida a resolução horizontal pela vertical e simplifique. Por exemplo, 1920×1080 reduz para 16:9.
Minha tela é 16:9 ou 16:10?
Verifique a resolução nas configurações. Um valor de ~1,78 indica 16:9; um valor de 1,6 indica 16:10.