Ratio Guides

Explore the most useful aspect ratios for video, design, and responsive media

Use this index to jump into dedicated guides for widescreen, square, vertical, legacy, and ultrawide aspect ratios. Each page explains the math, common resolutions, ideal use cases, and quick size references.

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Start with the ratio that matches your destination platform

The right ratio depends on where the asset will live. Standard video and presentation work usually begins with 16:9, while square, vertical, legacy, or cinematic formats often perform better in narrower distribution channels.

16:9

16:9 Aspect Ratio Calculator

Calculate 16:9 dimensions, common resolutions, CSS percentages, and scaling examples for video and web layouts.

YouTube videosPresentation slidesDesktop hero banners

16:10

16:10 Aspect Ratio Calculator

Calculate 16:10 dimensions for MacBook displays, professional monitors, and cross-screen layout testing.

MacBook displaysProfessional monitorsUI and web design

2:1

2:1 Aspect Ratio Calculator

Calculate 2:1 dimensions for panoramic photos, web hero banners, and wide editorial layouts.

Panoramic photosWeb hero bannersWide editorial layouts

4:3

4:3 Aspect Ratio Calculator

Work out 4:3 widths and heights for slides, tutorials, retro content, and camera workflows.

Slides and decksOld video archivesTutorial recordings

1:1

1:1 Aspect Ratio Calculator

Generate perfect square dimensions for avatars, social posts, tiles, and image placeholders.

Instagram grid postsProfile imagesProduct thumbnails

5:4

5:4 Aspect Ratio Calculator

Calculate 5:4 dimensions for editorial image cards, medium-format-inspired layouts, and landscape print crops.

Editorial cardsLandscape printMedium-format photography

4:5

4:5 Aspect Ratio Calculator

Calculate 4:5 portrait dimensions for Instagram feed posts, product photography, and editorial crops.

Instagram portrait postsProduct imageryEditorial portraits

1.91:1

1.91:1 Aspect Ratio Calculator

Calculate 1.91:1 dimensions for Open Graph images, Facebook and LinkedIn posts, and featured article cards.

Open Graph imagesFacebook postsLinkedIn posts

4:1

4:1 Aspect Ratio Calculator

Calculate 4:1 dimensions for LinkedIn personal banners, ultra-wide headers, and brand cover images.

LinkedIn bannersProfile cover imagesUltra-wide headers

3:1

3:1 Aspect Ratio Calculator

Calculate 3:1 dimensions for Twitter/X headers, web banners, and email headers with safe-zone guidance.

Twitter/X headersWeb bannersEmail headers

2:3

2:3 Aspect Ratio Calculator

Calculate 2:3 portrait dimensions for Pinterest pins, vertical print, and portrait photography crops.

Pinterest pinsPortrait photography4x6 prints

1:2

1:2 Aspect Ratio Calculator

Calculate 1:2 dimensions for tall mobile ads, extended portrait layouts, and poster-like vertical systems.

Tall mobile adsVertical postersExtended portrait layouts

9:16

9:16 Aspect Ratio Calculator

Calculate 9:16 vertical video sizes for TikTok, Instagram Reels, Shorts, and mobile-first creatives.

TikTokInstagram ReelsYouTube Shorts

3:2

3:2 Aspect Ratio Calculator

Calculate 3:2 dimensions for camera images, 35mm film workflows, 4x6 prints, and responsive photography layouts.

Photography4x6 printsCamera originals

21:9

21:9 Aspect Ratio Calculator

Find 21:9 ultrawide dimensions for cinematic edits, widescreen presentations, and monitor layouts.

Ultrawide monitorsCinema editsImmersive banners