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Video Aspect Ratio Calculator

Instantly calculate perfect pixel dimensions for Instagram, TikTok, YouTube, and more.

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Recommended Standard Resolution

1080 × 1920 (HD)

Perfect for TikTok, Instagram Reels, and YouTube Shorts.

Social Media Video Sizes Cheat Sheet (2026)

Using the wrong video dimensions can ruin your content. If your aspect ratio doesn't match the platform, your video will be forced into black bars (letterboxing) or aggressively cropped, hiding important text. Use our calculator above, or reference this quick guide for optimal sizes:

  1. TikTok, Reels, & Shorts (9:16): Vertical video is king. The absolute best resolution is 1080 x 1920 pixels. Avoid placing text in the bottom 20% to account for app captions.
  2. YouTube Standard (16:9): The classic landscape format. For high-definition uploads, use 1920 x 1080 (1080p) or 3840 x 2160 (4K).
  3. Instagram Feed Portrait (4:5): The best ratio for standard Instagram photo/video posts because it takes up the most screen space without getting cut off. Optimal size is 1080 x 1350 pixels.
  4. Facebook & LinkedIn (1:1): Square videos perform exceptionally well on news feeds across desktop and mobile. Standard resolution is 1080 x 1080 pixels.

Frequently Asked Questions (FAQ)

What does an Aspect Ratio mean?

An aspect ratio is the proportional relationship between a video's width and its height. It is written as Width:Height (like 16:9). It does not dictate the actual physical size in pixels, just the shape. A 1920x1080 video and a 1280x720 video both share the exact same 16:9 aspect ratio.

How do I convert a 16:9 video to 9:16?

You cannot easily convert a horizontal video (16:9) to a vertical video (9:16) without either severely cropping the sides or adding massive black bars to the top and bottom. Most creators use video editing software (like Premiere Pro or CapCut) to center the subject and crop out the left and right edges.

Why do my TikToks look blurry?

If your video isn't exactly in a 9:16 ratio (1080 x 1920), TikTok will compress and resize it, causing a loss in quality. Furthermore, exporting your video in 4K for TikTok is usually a mistake, as the app aggressively downscales files over 1080p. Stick to 1080x1920 for the crispest results.