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◫Aspect RatioCalculator

Tools

Fast calculators and generators for sizing, cropping, CSS, and screen resolution checks.

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Aspect Ratio CalculatorCalculate width, height, ratio, diagonal, CSS percentage, and matching resolutions.
Tool DirectoryBrowse every production tool in one index.

Production tools

Batch Aspect Ratio ConverterClassify long resolution lists and export CSV or Markdown.
Image Crop Preview ToolPreview how one image behaves across social, video, print, and web crops.
CSS Aspect Ratio GeneratorGenerate aspect-ratio CSS, padding fallbacks, and framework snippets.
Resolution FinderDetect screen resolution, viewport, DPR, and responsive breakpoint context.

Ratios

Dedicated guides for the common aspect ratios used in video, social, print, and web layouts.

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Core guides

All Ratio GuidesScan the full ratio reference library.
16:9Widescreen video, presentations, and embeds.
9:16Vertical video, Shorts, Reels, Stories, and TikTok.
1:1Square posts, avatars, tiles, and product cards.
4:5Portrait feed assets and social image crops.
4:3Classic displays, slides, tablets, and camera outputs.

Wide and display

21:9Ultrawide monitors, cinematic layouts, and hero media.
16:10Productivity screens, laptops, and professional monitors.
1.91:1Open Graph images, link previews, and social cards.
2:1Panoramic photos, wide editorial images, and web heroes.
3:2Photography originals, prints, and editorial crops.

Portrait and banners

2:3Pinterest pins, posters, and vertical photography.
1:2Tall vertical layouts and narrow story-style crops.
5:4Landscape print, editorial cards, and product media.
3:1Profile headers, banners, and strip-style visuals.
4:1Extra-wide banners and constrained profile surfaces.

Use Cases

Platform and workflow guides organized by where the asset is published.

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Use case index

All Use CasesBrowse platform and workflow guidance by destination.
Video Aspect Ratio GuidePlan video ratios for YouTube, Shorts, streaming, and exports.

Platform guides

Instagram Aspect Ratio GuideFeed, Reels, Stories, carousels, safe zones, and grid behavior.
TikTok Aspect Ratio GuideVertical video, Photo Mode, landscape uploads, and ad safe zones.
YouTube Aspect Ratio GuideMain videos, Shorts, thumbnails, banners, End Screens, and ads.
Facebook Aspect Ratio GuideFeed, Stories, Reels, Cover Photos, Carousel, and mobile-first ads.
Twitter / X Aspect Ratio GuideSingle images, multi-photo crops, videos, Headers, and ad formats.
LinkedIn Aspect Ratio GuideFeed images, videos, Document Posts, banners, and B2B ad formats.
Pinterest Aspect Ratio GuideStandard Pins, Idea Pins, Video Pins, Shopping Pins, and grid crops.

Learn

Articles, comparisons, and reference pages that explain aspect ratio decisions in context.

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Learning hub

Blog and GuidesAll aspect ratio articles and workflow references.
What Is Aspect Ratio?Definitions, examples, calculations, and where ratios show up.
How to Change Aspect RatioPremiere, CapCut, DaVinci, Canva, Photoshop, phone apps, and online workflows.
Aspect Ratio Cheat SheetRatio-first and platform-first lookup tables for fast reference.
Social Media Image SizesMajor platform dimensions across Instagram, Facebook, YouTube, TikTok, X, and more.

Comparisons

16:9 vs 4:3Choose between widescreen and classic framing for real workflows.
9:16 vs 16:9Compare vertical and widescreen video strategy.
4:5 vs 1:1 on InstagramUnderstand feed presence, grid control, and square-system tradeoffs.

Site

About the site, support, search, and policy pages.

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Company

AboutWhat the site offers and how the calculator is maintained.
ContactSupport, feedback, correction requests, and collaboration notes.
SearchFind tools, guides, use cases, and blog posts.

Policies

Privacy PolicyData, cookies, analytics, advertising, and user rights.
Terms of ServiceAcceptable use, disclaimers, liability, and service terms.

Fast calculators and generators for sizing, cropping, CSS, and screen resolution checks.

Browse Tools

Start here

Aspect Ratio Calculator
Tool Directory

Production tools

Batch Aspect Ratio Converter
Image Crop Preview Tool
CSS Aspect Ratio Generator
Resolution Finder

Dedicated guides for the common aspect ratios used in video, social, print, and web layouts.

Browse Ratios

Core guides

All Ratio Guides
16:9
9:16
1:1
4:5
4:3

Wide and display

21:9
16:10
1.91:1
2:1
3:2

Portrait and banners

2:3
1:2
5:4
3:1
4:1

Platform and workflow guides organized by where the asset is published.

Browse Use Cases

Use case index

All Use Cases
Video Aspect Ratio Guide

Platform guides

Instagram Aspect Ratio Guide
TikTok Aspect Ratio Guide
YouTube Aspect Ratio Guide
Facebook Aspect Ratio Guide
Twitter / X Aspect Ratio Guide
LinkedIn Aspect Ratio Guide
Pinterest Aspect Ratio Guide

Articles, comparisons, and reference pages that explain aspect ratio decisions in context.

Browse Learn

Learning hub

Blog and Guides
What Is Aspect Ratio?
How to Change Aspect Ratio
Aspect Ratio Cheat Sheet
Social Media Image Sizes

Comparisons

16:9 vs 4:3
9:16 vs 16:9
4:5 vs 1:1 on Instagram

About the site, support, search, and policy pages.

Browse Site

Company

About
Contact
Search

Policies

Privacy Policy
Terms of Service

Aspect Ratio Calculator

Free aspect ratio tools and guides for designers, developers, photographers, and content creators who need reliable dimension, crop, and layout answers without signup friction.

Ratio Guides Tool Directory Use Cases Blog About Contact Privacy Policy Terms of Service Batch Converter 16:9 Ratio 9:16 Ratio Social Media Sizes CSS Aspect Ratio Generator