Aspect Ratio Image & Video Calculator
Calculate proportional pixel dimensions for 16:9, 9:16, 1:1, 4:5, and custom ratios.
Pixel Dimensions
aspect-ratio: 16 / 9;About Aspect Ratio Image & Video Scaling Calculator
Calculate proportional width, height, and dimension scaling for responsive web design, photography, YouTube 16:9 thumbnails, TikTok 9:16 reels, and Instagram posts with our Aspect Ratio Image & Video Calculator. Lock proportions to calculate missing dimensions without image distortion.
Aspect Ratio Calculator Features
- đ Popular Standard Presets: 16:9 (Widescreen), 9:16 (Vertical Story), 1:1 (Square), 4:5 (Portrait), 4:3, and 21:9 (Ultrawide).
- đ Locked Dimension Calculation: Change either Width or Height and the corresponding value calculates automatically.
- đŧī¸ Live Visual Aspect Box: Interactive responsive preview box showing actual proportional geometry.
- đģ CSS & Web Dev Friendly: Displays modern CSS
aspect-ratio: 16 / 9;code snippets for stylesheets.
Common Aspect Ratio Resolutions
- 16:9 Widescreen: 1920x1080 (Full HD), 3840x2160 (4K), 1280x720 (HD).
- 9:16 Vertical Video: 1080x1920 (TikTok, Reels, YouTube Shorts).
- 1:1 Square: 1080x1080 (Instagram Feed Post).
- 4:5 Portrait: 1080x1350 (Instagram Vertical Photo).
Frequently Asked Questions (FAQ)
What is an aspect ratio?
An aspect ratio is the proportional relationship between the width and height of an image, video, or display screen (expressed as Width:Height, such as 16:9).
What aspect ratio is best for TikTok and Instagram Reels?
The standard ratio for vertical short-form video is 9:16 (1080 x 1920 pixels).
Is this aspect ratio calculator free?
Yes! Our image and video dimension tool is 100% free.
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