YouTube Ad Specs and Dimensions 2026
YouTube is the world's biggest video platform — and one of the most technically demanding when it comes to getting your ad creative right. Miss a file size limit, use the wrong resolution, or ignore format-specific requirements and your ad can look pixelated, get rejected outright, or simply fail to fire at the moment it matters most. With formats spanning Skippable In-Stream, Non-Skippable In-Stream, Bumper Ads, In-Feed Video, and Masthead Ads, each with their own precise specs, there's plenty of room for costly mistakes. This cheat sheet brings every YouTube ad dimension, file size, resolution, aspect ratio, and length requirement together in one clean, scannable reference — so your video creative always lands the way it was intended.
YouTube Video Ad (Landscape/HD)
Standard 16:9 high-definition video for pre-roll and mid-roll ads.
Dimensions:
Width in pixels:
1920
Height in pixels:
1080
YouTube Video Ad (Square)
A 1:1 video format that works well on both mobile and desktop feeds.
Dimensions:
Width in pixels:
1080
Height in pixels:
1080
YouTube Video Ad (Vertical/Shorts)
The primary format for YouTube Shorts and mobile-specific viewing.
Dimensions:
Width in pixels:
1080
Height in pixels:
1920
YouTube Companion Banner
A small static banner that appears next to the video on desktop.
Dimensions:
Width in pixels:
300
Height in pixels:
60
YouTube Display Ad
A static or animated ad that appears in the suggested video sidebar.
Dimensions:
Width in pixels:
300
Height in pixels:
250
