SizeKit reference

Instagram Square Post Size

Recommended pixel dimensions, aspect ratio, and copyable output for Instagram square post.

Instagram Square Post recommended size is 1080 x 1080 px with a 1:1 aspect ratio. Last reviewed: 2026-05.

Immediate answer

Instagram Square Post default

Instagram supports up to 1080 px wide photos within supported aspect ratios.

Recommended pixels 1080 x 1080 px Square feed post and carousel card

Aspect ratio 1:1 keep this when scaling

Minimum / note 320 px wide reviewed 2026-05

SizeKit

Use this as the working export size before upload.

Recommended

1080 x 1080

pixels

Aspect ratio

1:1

Square feed post and carousel card

Last reviewed

2026-05

320 px wide

SizeKit

Platform specs can change, so this page keeps the note visible.

Instagram supports up to 1080 px wide photos within supported aspect ratios.

SizeKit

Browse the rest of the social and web image size directory.

SizeKit

Quick answers for this asset.

Should I export exactly this size?

Use the recommended size unless your workflow needs a higher-resolution version with the same aspect ratio.

Can I scale this ratio?

Yes. Open the bottom calculator and choose Aspect Ratio to scale width or height.

Why include last reviewed?

Social platforms can change accepted sizes and cropping behavior, so review dates help users judge freshness.