Video Formats & Codecs

What is 1:1 Aspect Ratio?

1:1 is a square aspect ratio used primarily for Instagram feed posts, Facebook posts, and social media ads, measuring equal width and height.

1:1 Aspect Ratio Explained

The 1:1 square format became popular with Instagram's original photo format. While Instagram has since added landscape and portrait support, square video remains effective for feed posts because it takes up more vertical screen space in the feed than landscape 16:9 content. Common resolution is 1080x1080 pixels. Square video is also popular for Facebook ads, LinkedIn posts, and Twitter/X posts. Some creators film in 9:16 and crop to 1:1 for Instagram feed while using the full vertical version for Reels. The trade-off is losing the top and bottom portions of vertical footage. BlitzReels supports 1:1 as an export aspect ratio option alongside 9:16 and 16:9.

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Related Terms

Aspect Ratio

Aspect ratio is the proportional relationship between a video's width and height, expressed as two numbers separated by a colon (e.g., 16:9 for landscape, 9:16 for vertical, 1:1 for square).

16:9 Aspect Ratio

16:9 is the standard widescreen aspect ratio used for YouTube videos, TV broadcasts, and most desktop displays, measuring 16 units wide by 9 units tall.

9:16 Aspect Ratio

9:16 is the vertical video aspect ratio used for TikTok, Instagram Reels, YouTube Shorts, and Snapchat, measuring 9 units wide by 16 units tall.

Video Reframing

Video reframing is the process of changing a video's aspect ratio by intelligently cropping or repositioning the frame, typically to convert horizontal 16:9 footage into vertical 9:16 for short-form platforms.