Video & Image Aspect Ratio Calculator

Use this tool to find the exact ratio and scale for Instagram Reels, Posts, Stories, and YouTube Shorts.

Calculate exact ratios and resolution dimensions for Instagram

Instagram Presets

Width (Pixels)

Height (Pixels)

9:161080 × 1920

Aspect Ratio9:16

Decimal Ratio0.563 : 1

Standard Instagram Aspect Ratios Reference

9:16 Vertical (1080 × 1920 px)Used for Instagram Reels, Stories, and IGTV. Takes up the entire mobile screen.

4:5 Portrait Post (1080 × 1350 px)Takes up maximum screen estate in the Instagram feed without letterboxing.

1:1 Square (1080 × 1080 px)Classic Instagram square format for feed posts and carousels.

1.91:1 Landscape (1080 × 566 px)Horizontal widescreen images, ideal for panoramic photography.