Aspect Ratio Calculator

Professional aspect ratio calculator for screens, videos, images, and social media content. Calculate perfect dimensions for Instagram, YouTube, TikTok, monitors, TVs, and more with instant AI assistance.

Calculate Dimensions from Aspect Ratio

16:9

Widescreen

4:3

Standard

1:1

Square

4:5

Portrait

21:9

Ultrawide

9:16

Vertical

Custom Aspect Ratio

Width Ratio

Height Ratio

Width (pixels)

Height (pixels)

Visual Preview

16:9

Aspect ratio visualization

Find Aspect Ratio from Dimensions

Width (pixels)

Height (pixels)

Common Screen Resolutions

Full HD

1920 × 1080

2K QHD

2560 × 1440

4K UHD

3840 × 2160

HD Ready

1366 × 768

Ultrawide

3440 × 1440

XGA

1024 × 768

Resize While Maintaining Aspect Ratio

Original Dimensions

Original Width

Original Height

New Dimensions (enter one)

New Width

New Height

Screen & Display Ratios

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