💻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.

🤔 What Is Aspect Ratio?

Think of aspect ratio as the shape of your screen or image - that's the relationship between width and height! Whether you're creating content for Instagram, YouTube, or professional displays, our calculator instantly helps you maintain perfect proportions for 16:9, 4:3, 21:9, and more. No more stretched or cropped images!

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