5:4 Aspect Ratio Calculator for Reels

Instructions

1. Enter the original width (W1) and height (H1).
2. Enter either the new width (W2) or new height (H2) to compute the other.
3. Change values at any time — use Reset to restore defaults.

Instagram Aspect Ratio Guide

Choosing the right aspect ratio for your Instagram content is key to maximizing visual impact and engagement. Instagram supports several formats, each suited for different types of content.

Instagram Feed Posts (Photos & Videos)

For the main feed, you have a few options:

• Square (1:1): The classic Instagram format. Recommended resolution is 1080x1080 pixels. It's a safe bet that always looks good in the grid view.
• Portrait (4:5): This is often the best choice for engagement as it takes up more vertical screen space. The optimal resolution is 1080x1350 pixels.
• Landscape (1.91:1): Useful for wide shots. The recommended resolution is 1080x566 pixels. Content wider than 1.91:1 may be cropped.

Instagram Reels & Stories (9:16)

For full-screen, immersive content like Reels and Stories, the best aspect ratio is 9:16.

The recommended resolution is 1080x1920 pixels. This vertical format fills the entire mobile screen, capturing the viewer's full attention, which is ideal for short-form video.

Visual Aspect Ratio Examples

Video Length & File Specs

• Feed Videos: Up to 60 minutes.
• Reels: Up to 90 seconds.
• Stories: Up to 60 seconds per segment.
• Recommended Formats: MP4 and MOV.
• Max File Size: 4GB.

Why It Matters

Using the correct aspect ratio prevents Instagram from awkwardly cropping your content or adding black bars. Optimized images and videos look more professional and perform better on the platform.

Use Our Calculator

Need to resize a video or image for Instagram? Use our calculator to find the correct dimensions for any format.

Go to Instagram Aspect Ratio Calculator