Aspect Ratio Calculator

Calculate new dimensions while preserving proportional aspect ratios. Compare standard video, photography, and social media resolutions.

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1. Choose Target Ratio

2. Adjust Dimensions (Pixels)

px
px
Scale Multiplier (Resolution Scaling)1x

Social Media Standard Resolutions

Platform & FormatAspectResolutionAction
YouTube (Full HD Video (1080p))16:91920 × 1080
YouTube (4K UHD Video (2160p))16:93840 × 2160
TikTok / Reels (Vertical Video / Story)9:161080 × 1920
Instagram (Square Feed Post)1:11080 × 1080
Instagram (Portrait Feed Post)4:51080 × 1350
Twitter / X (In-stream Landscape Card)16:91200 × 675
Facebook (Shared Link Preview)1.91:11200 × 630
LinkedIn (Shared Image Post)1.91:11200 × 627
Proportional Preview
16:91920 × 1080
Decimal: 1.78:1Reduced: 16:9
Export Target Resolution
1920 × 1080
Total Pixels: 2,073,600 px (2.07 Megapixels)
Retina / HiDPI Design TipWhen designing graphics for 2x or 3x Apple Retina displays, set the scale multiplier to 2x or 3x to export crisp image assets without recalculating base layout vectors.

Understanding Aspect Ratios in Digital Media

An aspect ratio represents the proportional relationship between an image or video's width and height. Regardless of how many pixels are displayed, an aspect ratio stays uniform across varied screen sizes.

16:9 Widescreen

Standard format for digital television, YouTube videos, presentation slides, and modern laptops.

9:16 Vertical

Mobile-first full screen format perfected by TikTok, Instagram Reels, Snapchat, and YouTube Shorts.

1:1 Square & 4:5 Portrait

Social feed standards engineered for mobile thumb-scrolling and maximum user feed real estate.

Frequently Asked Questions

To find the aspect ratio, divide both width and height by their greatest common divisor (GCD). For instance, an image of 1920x1080 pixels has a GCD of 120. Dividing 1920/120 gives 16, and 1080/120 gives 9, producing the standard 16:9 widescreen ratio.
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