# Social Media Image Size Guide

> Target keyword: social media image sizes

A free social media image size guide lists the current recommended dimensions and aspect ratios for posts, stories, reels, and profile images across Instagram, TikTok, X, LinkedIn, and YouTube — so nothing gets cropped.

## Frequently asked questions

### What size should an Instagram post be?

Square posts are 1080×1080 (1:1), portrait posts 1080×1350 (4:5), and stories/reels 1080×1920 (9:16). Portrait 4:5 takes up the most feed space.

### What aspect ratio is best for Reels and TikTok?

Vertical 9:16 (1080×1920) is the native, full-screen ratio for Instagram Reels, TikTok, and YouTube Shorts.

Source: https://repping.ai/tools/image-size-guide