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Instagram Post Size
Instagram feed post size is 1080×1080 px square. Portrait 4:5 and Story sizes differ — official dimensions and free prep tools.
Updated 2026-05-26
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Official dimensions
| Asset | Size | Max file | Formats |
|---|---|---|---|
| feed_post | 1080×1080 | 30720 KB | jpg, png |
| story | 1080×1920 | 30720 KB | jpg, png |
Square 1:1 recommended; carousel uses same dimensions.
Preset: 1080×1080
FAQ
- What size are Instagram posts?
- 1080×1080 px for square feed posts. Instagram may downscale larger uploads.
- What about portrait posts?
- 4:5 (1080×1350) is supported in feed; check Instagram's latest creator docs for carousel and Reels.
- Best format for Instagram?
- JPG for photos; PNG only when you need transparency in graphics.
- Is Instagram post size the same as Story?
- No. Stories use 1080×1920 (9:16). See our Instagram story size spec page.