Instagram Photo Post Size In Pixels 2025. Instagram's 2025 grid layout update changed post sizes from square to rectangular,. Instagram supports three types of feed posts:
A rundown of the changes. Photo posts at 1200 x 630 pixels (1.91:1), video posts at 1280 x 720 pixels (16:9), and story posts at 1080 x 1920 pixels (9:16).