YouTube — Video Ad - Square (1:1)

Square · Video · Verified 2026-06

Live preview

1080×1080
shown at 43%

In context

Sample feed post

Full specification

Size (px)
Ratio1:1
Max weight256 GB
Max durationNo hard max (varies by format)
Max video256 GB
Formats · VideoMP4, MOV, MPEG-4, WebM, HEVC (H.265)
Text limits Varies by format

Notes & best practice

Recommended square resolution is 1080x1080 (1080p), with a minimum of 480x480.

Square video improves coverage in feed and Discovery placements alongside horizontal and vertical assets.

Frequently asked questions

What size is the YouTube Video Ad - Square (1:1)?
The YouTube Video Ad - Square (1:1) is 1080×1080 px, aspect ratio 1:1.
What is the aspect ratio of the YouTube Video Ad - Square (1:1)?
1:1. At the recommended resolution that is 1080×1080 px.
What is the maximum file size for the YouTube Video Ad - Square (1:1)?
Up to 256 GB, in .
How long can the YouTube Video Ad - Square (1:1) be?
No hard max (varies by format).
Why does YouTube crop my Video Ad - Square (1:1)?
YouTube shows Video Ad - Square (1:1) at 1:1. Upload exactly 1080×1080 px and keep key content in the safe area so nothing gets cut off.
Is 1080×1080 still correct for the YouTube Video Ad - Square (1:1) in 2026?
Yes. Last verified 2026-06 against the official YouTube documentation.

Check your creative

Test a file against this exact spec before you upload it anywhere.

Nothing is uploaded or saved — the check runs entirely in your browser.

Geo Glossary Compare