Social Media Ad Sizes 2026: The Practical Platform Guide

Incorrect ad sizes waste budget in quiet ways: poor crops, unreadable text, weak CTA visibility, and lower placement eligibility.

This guide gives you a practical 2026 sizing system you can use in real production workflows.

Important: platform specs change. Re-validate in-platform before final export.

The Core Production Strategy ​

Do not design from scratch for every placement.

Create a small set of master canvases, then adapt:

1. 1080 x 1080 (1:1)
2. 1080 x 1350 (4:5)
3. 1080 x 1920 (9:16)
4. 1920 x 1080 (16:9)

This covers most paid social and video contexts with minimal rework.

Google Display and YouTube ​

Google Display (uploaded image ads) ​

From Google Ads uploaded display specs:

• Formats: GIF, JPG, PNG
• Max size: 150 KB for image ads
• Common sizes include: 300 x 250, 336 x 280, 728 x 90, 970 x 250, 300 x 600, 320 x 50, 320 x 100

YouTube video ad specs (Google Ads) ​

Google recommends HD assets and accepts horizontal, vertical, and square inputs:

• Recommended HD examples: 1920 x 1080, 1080 x 1920, 1080 x 1080
• Also accepts lower minimums like 1280 x 720 (horizontal) and 720 x 1280 (vertical)
• Use safe-zone-aware composition because overlays and CTA elements can appear in different screen positions

LinkedIn Specs (Sponsored Content) ​

Single image ads ​

LinkedIn currently supports and recommends:

• Landscape: 1.91:1, commonly 1200 x 628
• Square: 1:1, commonly 1200 x 1200
• Vertical: 4:5, commonly 720 x 900 (mobile-leaning)

Additional limits include JPG/PNG/GIF and up to 5 MB image file size.

Video ads ​

LinkedIn video guidance currently includes:

• Aspect ratios: 16:9, 1:1, 4:5, and 9:16
• Length: 3 seconds to 30 minutes (15 to 30 seconds often recommended for broad placement eligibility)
• File format: MP4
• File size: 75 KB to 500 MB

TikTok In-Feed Auction Ads ​

TikTok's in-feed auction specs currently support:

• Vertical (recommended): 9:16, minimum 540 x 960
• Horizontal: 16:9, minimum 960 x 540
• Square: 1:1, minimum 640 x 640
• Formats: .mp4, .mov, .mpeg, .3gp, .avi
• Max file size: 500 MB
• Video duration: up to 10 minutes

For most performance campaigns, vertical creative should be your default.

Pinterest Ad Specs ​

Pinterest standard image ads currently recommend:

• 2:3 aspect ratio, typically 1000 x 1500
• Pins taller than 2:3 can be cut off in feed previews

Pinterest video guidance in business specs includes:

• Vertical-friendly formats, including 9:16 and full-bleed guidance at 1080 x 1920
• Maximum duration up to 5 minutes

If your creative has important text, test feed previews before scaling.

Meta Platforms (Facebook + Instagram): Practical Setup ​

Meta ad surfaces evolve often and can be placement-specific. Use Ads Manager previews as final authority before launch.

Operationally, most teams are safest with these working masters:

• 1:1 for feed portability
• 4:5 for mobile feed emphasis
• 9:16 for Stories/Reels contexts

Instagram help content for boosting Reels indicates full-screen vertical (9:16) behavior and duration constraints for boosted Reels. Story surfaces also require safe-zone discipline so UI elements do not cover key copy and CTA.

"No-Crop" Creative System for Teams ​

Use this rule set in your design workflow:

1. Keep headline and offer in the center safe area
2. Avoid placing critical text at extreme top or bottom edges
3. Export per placement when possible, not one file for all placements
4. QA every asset in native preview before publishing

If one master file must be reused, prioritize the 4:5 and 9:16 adaptations first.

Recommended Export Checklist ​

Before launch, verify:

• Correct dimensions and aspect ratio
• Correct file format and size limits
• Readable text at mobile scale
• No important elements covered by UI overlays
• Correct destination URL and tracking parameters

Specs compliance is basic quality control, not a growth strategy. But failing specs can block growth before it starts.

Production Workflow With Avocad ​

A practical weekly flow:

1. Create one core concept
2. Generate four master aspect-ratio outputs
3. Adapt copy density by placement
4. Run a quick QA pass in native previews
5. Launch controlled A/B tests on message, not sizing

Use sizing to preserve clarity. Use testing to improve performance.

Related Guides ​

• The Complete A/B Testing Guide for Small Business Ads
• Writing Ad Copy That Converts: A Data-Driven Guide
• Product Photography Tips for Better AI-Generated Ads

Correct dimensions do not guarantee winning ads, but incorrect dimensions consistently hurt otherwise strong campaigns.