Aspect Ratio Calculator

Maintain perfect proportions in your responsive designs

Aspect Ratio Calculator

px
Calculated Dimensions
Width px
Height px
1280 × 720
16:9 Aspect Ratio
px
px
Aspect Ratio
Ratio
Simplified Ratio

16:9

Decimal Form

1.78:1

16:9
CSS Code
/* CSS will appear here */
HTML Example
Preview
16:9

Common Aspect Ratios

Ratio Decimal Common Use
16:9 1.78:1 HD Video, Modern Displays
4:3 1.33:1 Standard TV, Older Displays
1:1 1:1 Square Format, Social Media
3:2 1.5:1 Photography, DSLR Cameras
21:9 2.33:1 Ultrawide Displays, Cinema
9:16 0.56:1 Mobile Video, Stories

Why Maintain Aspect Ratio?

Maintaining proper aspect ratios in web design ensures your content looks consistent and professional across all devices.

  • Prevent Distortion - Images and videos maintain their correct proportions
  • Professional Layout - Content appears as intended without stretching
  • Better UX - Creates predictable, consistent user experience
  • Space Planning - Reserve appropriate space for responsive media