Instagram Post Image Size 2025 Photo Size. Learn the correct dimensions for each platform to keep your images sharp and optimized. The typical size is 1,080 × 1,350 pixels, or approximately 9.14 × 11.43.

Instagram’s 2025 grid layout update changed post sizes from square to rectangular, making them longer. Now bear in mind the dimensions will be in a square format as per the standard, however, your image will be cropped to fit the circular frame of your profile picture!