Meta ad specs: Facebook and Instagram

What size should Facebook and Instagram feed ads be?

Use 4:5 at 1440 × 1800 px. Meta accepts feed images from 4:5 to 1.91:1, in JPG and PNG, up to 30 MB, at least 600 px wide.

Many cheat sheets still say 1080 × 1350. That size is accepted, but it is not what Meta recommends today. For video, the two feeds recommend different shapes: Facebook Feed 4:5, Instagram Feed 9:16.

Feed video runs from 1 second up to 60 minutes on Instagram (Facebook allows longer), in MP4, MOV and GIF, up to 4 GB. Sources: Meta Ads Guide: Facebook Feed image, Meta Ads Guide: Facebook Feed video.

What size are Reels and Stories ads?

Both are full screen 9:16 at 1440 × 2560 px. Reels ads can run up to 15 minutes and Stories videos up to 60 minutes, both up to 4 GB. Stories images go up to 30 MB.

• Minimum width is 250 px for shorter videos.
• Minimum width is 500 px for videos of 30 seconds or longer.
• Reels ads cannot use licensed music.
• Stories videos of 16 seconds or longer may be split into up to three cards.

Sources: Meta Ads Guide: Instagram Reels, Meta Ads Guide: Instagram Stories.

What is the safe zone for Reels and Stories ads?

Meta asks you to leave 14% at the top, 35% at the bottom and 6% on each side free of text, logos and other key elements. On a 1440 × 2560 px frame that is 358 px at the top, 896 px at the bottom and 86 px each side.

The bottom zone is the one that catches people out: it holds the caption and the call to action button, so an end card with a price or a button in the lower third will be covered. Gatecheck draws this zone over your own frame so you can see it before Meta does.

What gets Meta video rejected or shown wrong?

• Edit lists. Trimming a clip in QuickTime or Photos without re-exporting leaves an edit list in the file. Meta asks for none; players that ignore them show the untrimmed footage.
• A ratio outside the accepted range. Feed takes 4:5 to 1.91:1; Reels and Stories take 9:16.
• Licensed music in Reels ads.
• Variable frame rate from phone recordings and screen captures. Meta asks for a fixed frame rate, progressive scan, H.264 and stereo AAC audio.

Full specs

Every rule Gatecheck checks for these placements, with its source.

What Gatecheck checks

Drop a file into the checker and it is read in your browser and tested against these placements and the other 20 in the library:

• Aspect ratio and pixel size against each ratio the placement accepts, and any minimum or recommended size
• Image format and file weight, CMYK and wide-gamut colour profiles, EXIF rotation and transparency
• Container, codec, file weight and length, measured from the file itself to the hundredth of a second
• Variable frame rate, typical of phone recordings and screen captures
• Interlaced video
• Edit lists left by trimming in QuickTime or Photos, which some players ignore
• HDR and 10-bit exports that phones and ad platforms may not show correctly
• Black bars from a wide edit placed inside a tall frame, found by sampling real frames
• Loudness and true peak to ITU-R BS.1770, flagging extremes where the platform sets no target
• A safe-zone overlay on your own frame, to confirm no text, logo or offer sits under the interface