New 2026 Instagram Post Size Cheat Sheet
Looking to keep your grid fresh without your graphics getting chopped up by Instagram’s constant updates? If you’ve noticed your standard square posts looking a bit squeezed lately, you’re not alone. Instagram has rolled out big changes, natively pushing a 3:4 aspect ratio for vertical feed photos and updating profile grids to 3:4 vertical tiles instead of the classic 1:1 square. If you want your content looking sharp from Joburg to Cape Town, here is the quick breakdown to keep your branding on point. Instagram Dimensions Cheat Sheet New Native Feed Image (3:4 Ratio | 1080 × 1440 px): The gold standard for vertical photos. It fills up your followers' screens and fits perfectly into the new profile grid without weird auto-cropping. Classic Feed Portrait (4:5 Ratio | 1080 × 1350 px): Still great for maximum vertical feed real estate, but keep key elements centered so the top and bottom don't get trimmed on your grid view. Reels & Stories ( 9:16 Ratio | 10...