Instagram post sizes and formats

Quick format reference

Sizes described as “practical” are working recommendations, not display guarantees. Always inspect the publishing preview.

What Instagram officially supports

Meta says Instagram preserves photo resolution up to 1080 pixels wide when the image has a supported aspect ratio between 1.91:1 and 3:4. At 1080 pixels wide, that means a height between roughly 566 and 1440 pixels. A photo outside the supported range may be cropped to fit.

This is broader than older advice that treated 4:5 as the tallest feed option. A 4:5 canvas remains a practical and familiar preset, but the official help page now also describes 3:4 support. Distinguishing those statements avoids turning yesterday’s interface into today’s rule.

Square: simple and reusable

A 1080 × 1080 square is useful for quote graphics, centered products, announcements and a visual series shared across several channels. It gives equal space in both directions and is straightforward to compose.

Square does not mean the profile grid will always show every post in exactly the same frame. Keep the subject and headline away from the outer edge, especially when a design must remain recognizable in thumbnails.

Portrait 4:5: a practical feed preset

A 1080 × 1350 portrait uses more vertical screen space than a square and remains a dependable working preset. It suits people, products, tutorials and promotional cards that need one main image plus a concise message.

Use the extra height for composition, not clutter. A portrait poster filled with small copy still fails on a phone. Build a clear first, second and third element and move supporting explanation into the caption or linked page.

Portrait 3:4: the newer supported option

Meta’s help page states that photos can be supported up to a 3:4 portrait ratio, corresponding to 1080 × 1440 at the maximum retained width. This can suit photographs captured in a similar native shape and provides slightly more vertical room than 4:5.

Before making 3:4 your default, confirm that your design tool and publishing flow preserve it as intended and preview the real post. A supported upload ratio does not mean every thumbnail, grid view or external embed uses the same crop.

Landscape: when width serves the subject

The supported wide boundary described by Meta is 1.91:1, roughly 1080 × 566. Landscape can work for places, teams, groups and horizontal scenes, but it occupies less vertical space in a phone feed.

Do not choose portrait only to chase screen area when it damages the photograph. Select the ratio that protects the subject and message, then make the type large enough for the smaller displayed height.

Stories and Reels are separate placements

Stories and Reels use a vertical experience commonly designed at 9:16, 1080 × 1920. Meta lists Reels support from 1.91:1 through 9:16, with at least 720 pixels and 30 frames per second for video. Static feed-photo guidance should not be confused with video requirements.

Interface elements occupy parts of the screen. Keep faces, key words and actions in a central safe area. Recompose a feed graphic for 9:16 instead of simply extending the background.

Reel covers and profile previews

Meta recommends a 420 × 654 Reel cover, a ratio near 1:1.55, and notes that the cover cannot currently be edited after upload. That makes previewing and choosing the frame important.

A cover can appear differently in the Reel view and profile context. Put the identifying subject and few essential words near the visual center, and avoid relying on tiny edge text.

Cropping and the profile grid

An upload can be accepted while a preview still uses a different frame. Feed display, profile grid, search surfaces and embeds are separate contexts. Build tolerance into the composition instead of assuming one screenshot represents every viewer.

Use comfortable margins and keep faces, logos and first-line copy near the center. Preview both the complete post and the profile grid before publishing a campaign whose visual sequence depends on alignment.

Text, contrast and accessibility

A feed image should remain understandable at phone size. Use short headlines, strong contrast and natural line breaks. Avoid using several typefaces, outlines and shadows to force emphasis. If the background is busy, simplify the crop or add a solid reading area.

Repeat the essential information in the caption as real text and add useful alternative text where available. Do not communicate status only through color. These choices improve access and also make the message more robust when the image is viewed quickly.

Export without unnecessary damage

PNG is useful for graphics with crisp type and flat color. JPG often creates a smaller file for photographic designs. Begin with a high-quality source and avoid repeated download, messaging-app compression and re-upload cycles.

Instagram may process the upload, so inspect the published version. Increasing dimensions far beyond the useful target cannot restore detail missing from the original photograph.

A practical Postzmaker workflow

Choose the square 1080 × 1080 or portrait 1080 × 1350 preset when it matches your goal; use a Story canvas for 9:16. Confirm custom-dimension support in the current editor before planning a 1080 × 1440 3:4 production workflow. Write and verify the message, then design around it.

Keep an editable local draft, preview at a small size and export the appropriate format. Postzmaker does not require an account and does not add a watermark, but no design tool can guarantee distribution or engagement.

Final checklist

Check the placement, ratio and canvas; spelling, names and dates; image rights; smallest type; contrast; central safe area; crop in the profile grid; caption and alternative text; export quality; and the real publishing preview.

Platform guidance evolves. Treat this checklist as a repeatable process and update saved templates when Meta changes supported ratios or presentation.

Worked examples for real Instagram content

Decision table

Common mistakes and how to prevent them

• Calling 4:5 the only supported portrait ratio.
• Confusing feed-photo rules with Reel video requirements.
• Assuming a supported upload means every preview is uncropped.
• Putting tiny paragraph text inside the image.
• Using a Reel cover without checking the profile context.
• Exporting repeatedly through apps that recompress the file.

Quality control should include message accuracy, image rights, crop, contrast, smallest type, export format, caption, alternative text and destination link. Upload a private draft where possible. The publishing preview is the final test because platform presentation can change independently of the source file.

Build a ratio-aware content system

Turn the chosen approach into a reusable master draft. Name the draft by placement and ratio, keep an untouched version, and duplicate it for each campaign. Record the date on which platform guidance was checked so future editors know whether the template needs review.

Quality control should include message accuracy, image rights, crop, contrast, smallest type, export format, caption, alternative text and destination link. Upload a private draft where possible. The publishing preview is the final test because platform presentation can change independently of the source file.

Frequently asked questions

Primary sources and update notes

This guide distinguishes Meta-published information from Postzmaker workflow recommendations. Platforms can change interfaces and requirements; sources were checked on the date shown.

• Instagram photo resolution (Meta Help)
• Instagram Reels requirements (Meta Help)
• Facebook Page profile and cover images (Meta Help)
• Photo ad best practices (Meta for Business)