Reddit Ads — Video Ad (Promoted Video)

Video · Social · Verified 2026-06

Live preview

1080×1080

shown at 43%

In context

Sample feed post

Full specification

Size (px)

Ratio1:1 (also 4:5, 4:3, 16:9 supported)

Max weight1 GB (512 MB recommended)

FormatsJPG, PNG, GIF

Max durationUp to 15 minutes (5-30 seconds recommended; minimum 2 seconds)

Max video1 GB (under 512 MB recommended to avoid encoding issues)

Formats · VideoMP4, MOV

Text limits

Headline 300 chars

Notes & best practice

MP4 or MOV only.

ProRes is not supported.

Max frame rate is 30 FPS.

Minimum resolution is 1080x1080.

Recommended ratios are 4:5 or 1:1 for mobile, and 16:9 or 4:3 for desktop.

Thumbnails can be auto-generated or custom JPG, PNG, or GIF up to 3 MB.

Official doc All Reddit Ads sizes Compare “Video” across platforms

Frequently asked questions

What size is the Reddit Ads Video Ad (Promoted Video)?

The Reddit Ads Video Ad (Promoted Video) is 1080×1080 px, aspect ratio 1:1 (also 4:5, 4:3, 16:9 supported).

What is the aspect ratio of the Reddit Ads Video Ad (Promoted Video)?

1:1 (also 4:5, 4:3, 16:9 supported). At the recommended resolution that is 1080×1080 px.

What is the maximum file size for the Reddit Ads Video Ad (Promoted Video)?

Up to 1 GB (512 MB recommended), in JPG, PNG, GIF.

What file formats does Reddit Ads accept for the Video Ad (Promoted Video)?

JPG, PNG, GIF.

How long can the Reddit Ads Video Ad (Promoted Video) be?

Up to 15 minutes (5-30 seconds recommended; minimum 2 seconds).

Why does Reddit Ads crop my Video Ad (Promoted Video)?

Reddit Ads shows Video Ad (Promoted Video) at 1:1 (also 4:5, 4:3, 16:9 supported). 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 Reddit Ads Video Ad (Promoted Video) in 2026?

Yes. Last verified 2026-06 against the official Reddit Ads documentation.

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