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Free tool · Creative opsMeta ad specs
Meta ad specs
checker.
Meta recommends 4:5 at 1440 x 1800 for Facebook and Instagram Feed images and 9:16 at 1440 x 2560 for Stories and Reels. Drop a file to check its ratio, resolution, size and length against each placement. The file never leaves your browser.
Or try a size:
1080 x 1920
1080 x 1920 · 9:16 · 38MB · 24.0s
Facebook Feed
Not ideal- Aspect ratio: 9:16; Meta recommends 4:5 here, so expect crops or bars
- Resolution: 1080 x 1920px; 1440 x 1800px is recommended
- File size: 38MB of 4GB max
- Length: 24.0s
Instagram Feed
Ready- Aspect ratio: 9:16, as recommended
- Resolution: 1080 x 1920px
- File size: 38MB of 4GB max
- Length: 24.0s
Instagram Stories
Not ideal- Aspect ratio: 9:16, as recommended
- Resolution: 1080 x 1920px; 1440 x 2560px is recommended
- File size: 38MB of 4GB max
- Length: 24.0s
Instagram Reels
Not ideal- Aspect ratio: 9:16, as recommended
- Resolution: 1080 x 1920px; 1440 x 2560px is recommended
- File size: 38MB of 4GB max
- Length: 24.0s
Specs from Meta's Ads Guide, checked 2026-10-21. Meta changes them, so check the linked page before a big launch.
Four checks, every placement.
A file passes a placement when its ratio, width, size and (for video) length are all on spec. Off-ratio files still run, they just get cropped or framed.
Aspect ratio = width / height (4:5 = 0.80, 9:16 = 0.5625, 1.91:1 = 1.91)Safe area (9:16) = frame minus 14% top, 35% bottom, 6% each sidePass, works, fix first
Pass: on spec. Works, not ideal: Meta takes it, but recommends another ratio or a larger size. Fix first: under the minimum width, over the file size, or outside the accepted range or length.
Why the safe zones matter
On Reels and Stories the caption, buttons and profile cover the top and bottom of the frame. Text or a product shot in those areas gets hidden.
The specs, placement by placement.
Read from Meta's Ads Guide on 2026-10-21. Where Meta gives a recommended ratio but no accepted range, the checker warns instead of failing.
| Placement | Image | Video | Video length | Primary text |
|---|---|---|---|---|
| Facebook Feed | 4:5, 1440 x 1800, max 30MB | 4:5, 1440 x 1800, max 4GB | 1s to 241 min | 50 to 150 characters, headline 27 |
| Instagram Feed | 4:5, 1440 x 1800, max 30MB | 9:16, 1080 x 1920, max 4GB | 1s to 60 min | 125 characters, headline 40 |
| Instagram Stories | 9:16, 1440 x 2560, max 30MB | 9:16, 1440 x 2560, max 4GB | 1s to 60 min | 125 characters |
| Instagram Reels | 9:16, 1440 x 2560, max 30MB | 9:16, 1440 x 2560, max 4GB | 0s to 15 min | 44 characters |
- Facebook Feed, image
- Facebook Feed, video
- Instagram Feed, image
- Instagram Feed, video
- Instagram Stories, image
- Instagram Stories, video
- Instagram Reels, video
Reels images are checked against the 9:16 Stories image spec. Reels videos need 500px width from 30 seconds up (250px below that).
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How Fovea does itSee the Library →
Every format, one library.
Upload 9:16, 4:5 and 1:1 cuts of the same idea and Fovea keeps them side by side, tagged with their hook, style and on-screen text, so the right version is one search away.
Questions, answered.
What size should a Meta ad be?+
For Facebook and Instagram Feed images, Meta's Ads Guide recommends 4:5 at 1440 x 1800 pixels. For Stories and Reels it recommends 9:16 at 1440 x 2560. Check the table on this page for each placement.
What are the Reels safe zones?+
Meta's guide says to keep about 14.000000000000002% at the top, 35% at the bottom and 6% on each side free of text, logos and other key elements, because the interface covers those areas. Turn on the overlay in the checker to see them on your file.
Is my file uploaded anywhere?+
No. The checker reads the file's width, height, size and length in your browser. Nothing is sent to a server, so it works for unreleased creative too.
Can I run a 1:1 image in feed?+
Instagram Feed accepts ratios from 4:5 to 1.91:1, so 1:1 runs. Meta recommends 4:5 because it takes more of the screen, so the checker marks 1:1 as works, not ideal.
How current are these specs?+
They were read from Meta's Ads Guide on 2026-10-21. Meta changes them from time to time; every placement card links to Meta's page so you can check before a big launch.
On spec is step one.
Selling is step two.
Fovea links each creative to its Meta spend and the Shopify product it sells, so you know which version actually worked.
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