Dimensions made practical

Aspect ratio guides

Compare popular image and video shapes, find matching pixel dimensions and choose the right ratio for each screen or platform.

Common aspect ratios

Each guide includes sizes, conversions and typical uses.

Open calculator
LANDSCAPE · 1.7778

16:9 aspect ratio

1920×1080, 1280×720 and 3840×2160. The standard widescreen shape for video and displays.

Explore 16:9 → PORTRAIT · 0.5625

9:16 aspect ratio

1080×1920, 720×1280 and 2160×3840. Full-screen vertical video for phones.

Explore 9:16 → SQUARE · 1.0000

1:1 aspect ratio

1080×1080, 1200×1200 and 2048×2048. A balanced square format for images and posts.

Explore 1:1 → PORTRAIT · 0.8000

4:5 aspect ratio

1080×1350, 1200×1500 and 1600×2000. A tall feed-friendly image format.

Explore 4:5 → LANDSCAPE · 1.3333

4:3 aspect ratio

1600×1200, 1024×768 and 800×600. A classic photo, presentation and display ratio.

Explore 4:3 → ULTRAWIDE · 2.3333

21:9 aspect ratio

2560×1080, 3440×1440 and 5120×2160. An ultrawide format for monitors and cinematic layouts.

Explore 21:9 →

Aspect ratio vs resolution

An aspect ratio describes shape: the relationship between width and height. Resolution describes the actual pixel count. For example, 1280×720, 1920×1080 and 3840×2160 are different resolutions that all share the 16:9 ratio.

aspect ratio = width ÷ height

Higher resolution does not change the ratio when width and height scale by the same factor.

Choose a ratio in three steps

  1. Start with the destination: screen, social feed, story, presentation or print.
  2. Choose the required shape before setting the final resolution.
  3. Check whether your source needs cropping with the crop loss calculator.

For a custom size, enter its width and height in the aspect ratio calculator.