New Instagram Post Size 2025 Inches. Instagram's 2025 grid layout update changed post sizes from square to. Ever wondered if your image is the right size for instagram?

You can’t upload 3:4 ratio content on instagram even though the new grid preview is taller, instagram limits content dimensions to a maximum width of 1080 px and a maximum height of 1350 px (4:5 ratio). Here are the ideal instagram post dimensions for feed posts, reels, and stories.