Aspect Ratio FAQ

Allaspectratio is a comprehensive suite of free, high-precision tools for display enthusiasts, creators, and gamers. We provide an aspect ratio calculator, PPI calculator, refresh rate checker, and screen testing tools.

Aspect ratio is the proportional relationship between the width and height of an image, video, or screen. It's written as two numbers separated by a colon, like 16:9 or 4:3. Our aspect ratio calculator makes it easy to find and convert between any ratio.

Instagram supports 1:1 (square), 4:5 (portrait), 9:16 (Reels/Stories), and 1.91:1 (landscape). Use our Instagram aspect ratio calculator to find the perfect dimensions for any post type.

TikTok's standard aspect ratio is 9:16 (vertical, 1080x1920 pixels). This fills the entire mobile screen for an immersive viewing experience. Our TikTok aspect ratio calculator helps you prepare content.

YouTube Shorts uses a 9:16 vertical aspect ratio (1080x1920 pixels), matching TikTok and Instagram Reels. Use our YouTube Shorts aspect ratio calculator to format your content correctly.

16:9 is the standard widescreen aspect ratio for HDTV, YouTube, monitors, and modern displays. Common resolutions include 1920x1080 (Full HD), 2560x1440 (QHD), and 3840x2160 (4K).

4:3 is the classic aspect ratio used by older CRT televisions, iPads, and some photography formats. Common resolutions include 800x600, 1024x768, and 1600x1200.

Divide the pixel width by the pixel height. For example, 1920/1080 = 1.78, which simplifies to 16:9. Our aspect ratio calculator pixels mode handles this instantly for any resolution.

Measure the width and height in inches, then divide width by height. Our aspect ratio calculator inches mode does this automatically and simplifies to the nearest standard ratio.

Yes, all tools on Allaspectratio are completely free to use. No payments, subscriptions, or accounts required.

Our calculations use standard mathematical formulas (GCD for aspect ratios, Pythagorean theorem for PPI) to provide the most accurate results possible.

Yes, Allaspectratio is fully responsive and optimized for mobile browsers.

We offer an Aspect Ratio Calculator, PPI Calculator, Refresh Rate Check, Viewing Distance Calculator, Dead Pixel Finder, Motion Blur Test, and Stuck Pixel Fixer.