Banner Ad Sizes 2025: Complete Guide to Display Ad Formats & Dimensions

Banner ads remain a crucial component of digital marketing. Choosing the right size can make the difference between a successful and unsuccessful campaign.

This guide shows you the allowed dimensions for the Google Display Network and major social media platforms, so you can immediately create optimal advertising materials.

Key Ad Formats at a Glance

The table shows the most important formats and allowed banner dimensions for Google, Meta (Facebook and Instagram), TikTok, X (Twitter), LinkedIn, YouTube, and Snapchat. Note: More detailed specifications are listed in the respective sections.

Google Display Network Banner Sizes

The Google Display Network supports various banner formats based on IAB standards. Responsive display ads automatically adapt to available ad placements.

• Medium Rectangle (300×250 pixels): The Medium Rectangle, also called MPU or Med Rec, is one of the most popular formats. It works for both desktop and mobile advertising and provides sufficient space for brand messages.

• Leaderboard (728×90 pixels): The leaderboard format typically appears at the top of a webpage, making it one of the first things users see. This position makes it highly visible and increases the likelihood of clicks.

• Large Rectangle (336×280 pixels): The Large Rectangle was previously a popular format but is no longer frequently used by many ad networks. It appeared alongside content.

• Half-Page Ad (300×600 pixels): The Half-Page Ad is a portrait banner with high visibility. It offers plenty of space for creative content and is especially popular on premium websites.

• Wide Skyscraper (160×600 pixels): The Wide Skyscraper is a vertical format placed on the sides of websites, standing out particularly due to its height.

• Mobile Banner (300×50 pixels): Mobile banners are specifically designed for mobile devices. They typically appear at the top or bottom of the screen and are cost-effective but offer less space for content.

• Mobile Leaderboard (320×50 pixels): An extended version of the mobile banner that utilizes the additional screen width of modern smartphones.

• Banner (468×60 pixels): The classic banner format still used on many websites, although it’s now considered outdated.

• Billboard (970×250 pixels): A large-format banner for maximum attention, ideal for branding campaigns and premium placements.

Technical Requirements for Google Display:

• Maximum file size: 150KB
• Supported formats: JPEG, PNG, GIF, HTML5 (recommended), SVG
• Flash/SWF is no longer supported

Responsive Display Ads

Google recommends responsive display ads that automatically adapt to different ad placements:

Required Assets:

• Landscape images: 1200 × 628 pixels (1.91:1)
• Square images: 600 × 600 pixels (1:1)
• Optional: Portrait images: 960 × 1200 pixels (4:5)

Social Media Banner Ads

Requirements for social media ads differ significantly from display advertising. Each platform has developed its own standards optimized for user experience.

Meta: Facebook & Instagram

What sizes do Facebook and Instagram ads have? Meta ads dominate social media marketing with over 3 billion active users. Both platforms use identical ad formats, significantly simplifying campaign creation.

Feed Images:

• Aspect ratio: 1:1
• Resolution: 1080 × 1080 pixels

Stories and Reels (Images):

• Aspect ratio: 9:16
• Resolution: 1080 × 1920 pixels

Feed and Story Videos:

• Aspect ratio: 4:5
• Resolution: 864 × 1080 pixels

Reels Videos:

• Aspect ratio: 9:16
• Resolution: 1080 × 1920 pixels

Carousel Ads:

• Feed: 1080 × 1080 pixels (1:1) or 1080 × 1350 pixels (4:5)
• Stories: 1080 × 1920 pixels (9:16)
• Minimum resolution 9:16: 500 × 888 pixels
• Recommended resolution 9:16: 1080 × 1920 pixels
• Number of cards: 2-10 (Feed), 2-3 (Stories)
• Aspect ratio tolerance: 3% (Facebook), 1% (Instagram)

Meta Technical Requirements:

• Supported image formats: JPG, PNG
• Maximum file size images: 30 MB
• Supported video formats: MP4, MOV
• Maximum video length: 241 minutes (recommended: 15 seconds)
• Minimum video length: 1 second
• Maximum video file size: 4 GB

Text Limits for Carousel Ads:

• Text: 125 characters
• Headline: 40 characters (Facebook), unlimited (Instagram)
• Link description: 25 characters (Facebook only)
• Instagram hashtags: up to 30

TikTok Ads

TikTok ad dimensions: What sizes are optimal? TikTok relies entirely on vertical videos and reaches over 1 billion monthly users. The platform prefers authentic, mobile-first content.

In-Feed Ads:

• Aspect ratio: 9:16 (recommended), 1:1, 16:9
• Resolution: minimum 540 × 960 pixels, recommended 720 × 1280 pixels

TopView Ads:

• Aspect ratio: 9:16, 1:1, 16:9
• Resolution: minimum 540 × 960 pixels, recommended 720 × 1280 pixels

Brand Takeover Ads:

• Aspect ratio: 9:16
• Resolution: recommended 720 × 1280 pixels

Collection Ads:

• Aspect ratio: 1:1, 9:16, 16:9
• Resolution: up to 1280 × 720 pixels depending on format

TikTok Technical Requirements:

• Supported file formats: MP4, MOV, MPEG, 3GP, AVI
• Maximum file size: 500 MB
• Video length: 5-60 seconds
• Bitrate: ≥516 kbps (In-Feed), ≥2,500 kbps (TopView)

X (Twitter)

What dimensions do X (Twitter) ads have? X continues to focus on text-based content with visual support. The platform is particularly suitable for news, updates, and community building.

Promoted Images:

• Aspect ratio: 1:1 or 1.91:1
• Resolution: 1200 × 1200 or 1200 × 628 pixels

Promoted Videos:

• Aspect ratio: 16:9 (recommended), 1:1, 1.91:1
• Resolution: 1280 × 720 pixels (standard HD)

Carousel Ads:

• Aspect ratio: 1:1 or 1.91:1

Header Image:

• Resolution: 1500 × 500 pixels

X Technical Requirements:

• Supported image formats: PNG, JPEG, GIF
• Maximum file size images: 5 MB (mobile), 15 MB (web)
• Supported video formats: MP4, MOV
• Maximum video length: 2 minutes 20 seconds

LinkedIn Ad Formats

LinkedIn ad formats for B2B marketing: LinkedIn is the leading platform for business-to-business marketing with over 900 million professionals. Ad formats are specifically optimized for professional content.

Single Image Ads:

• Horizontal: 1200 × 628 pixels (1.91:1) - for desktop and mobile
• Square: 1200 × 1200 pixels (1:1) - recommended for best cross-device display
• Vertical: 628 × 1200 pixels (1:1.91) - mobile only, best CTR performance
• Minimum: 640 × 360 pixels (horizontal), 360 × 360 pixels (square), 360 × 640 pixels (vertical)
• Maximum: 7680 × 4320 pixels (horizontal), 4320 × 4320 pixels (square), 2430 × 4320 pixels (vertical)

Carousel Ads:

• Aspect ratio: 1:1 (square only)
• Resolution: 1080 × 1080 pixels (recommended)
• Maximum: 4320 × 4320 pixels
• Number of cards: 2-10
• Static images only, no videos

Video Ads:

• Horizontal (16:9): 1920 × 1080 pixels (max), 640 × 360 pixels (min)
• Square (1:1): 1920 × 1920 pixels (max), 360 × 360 pixels (min)
• Vertical (9:16): 1080 × 1920 pixels (max), 360 × 640 pixels (min)
• Vertical (4:5): 1536 × 1920 pixels (max), 360 × 450 pixels (min)
• Aspect ratio tolerance: 5%

Text Ads:

• Logo image: 100 × 100 pixels (square)
• File formats: JPG, PNG, GIF (not animated)
• Maximum file size: 2 MB
• Appearance: Right column or top of page

Message Ads (Sponsored Messaging):

• Banner image: 300 × 250 pixels
• File formats: JPG, PNG, GIF (not animated)
• Appears directly in inbox
• Must be sent by a team member

Document Ads:

• Same specifications as Single Image Ads
• PDF documents displayed directly in feed
• Enables download without leaving LinkedIn

Event Ads:

• Same specifications as Single Image Ads
• Special CTAs for event registration

Lead Gen Forms:

• Can be combined with all ad formats
• Auto-filled forms with LinkedIn profile data
• Recommended: 3-4 form fields

LinkedIn Technical Requirements:

• Image formats: PNG, JPEG, GIF (not animated)
• Maximum file size images: 5 MB
• Video formats: MP4 (recommended)
• Video length: 3 seconds - 30 minutes (recommended: under 15 seconds)
• Video file size: 75 KB - 200 MB
• Video thumbnail: JPG or PNG, max. 2 MB

Text Limits for LinkedIn Ads:

• Headline: 70 characters (max. 200)
• Intro text: 150 characters recommended (max. 600)
• Description (LAN only): 70 characters
• CTA: 10 predefined options
• Message Ads: max. 1,500 characters

YouTube Ad Specifications

YouTube is the world’s second-largest search engine and offers various video ad formats. The platform combines display and video advertising for maximum reach.

Video Ads:

• Aspect ratio: 16:9 (recommended), 1:1, 4:3
• Resolution: 1920 × 1080 (recommended)
• Minimum resolution: 426 × 240

Display Ads (Desktop):

• Dimensions: 300 × 250 pixels

YouTube Technical Requirements:

• Supported video formats: MP4, MOV, MPEG, AVI, WMV, FLV
• Maximum file size: 128 GB or 12 hours video length
• Recommended video length for ads: 15-30 seconds

Snapchat Ad Sizes

The vertical format: Snapchat focuses exclusively on mobile users with an average age of 13-34. All ad formats use the full-screen experience.

All Ad Formats:

• Aspect ratio: 9:16
• Resolution: 1080 × 1920 pixels

Snapchat Technical Requirements:

• Supported image formats: PNG, JPEG
• Maximum file size images: 5 MB
• Supported video formats: MP4, MOV
• Maximum video length: 3 minutes
• Minimum video length: 3 seconds

Factors in Banner Size Selection

Before launching your ad campaigns, it’s crucial to research the right approach. Using a keyword research tool can help you identify the most effective search terms and phrases your target audience uses, which directly impacts your ad targeting and messaging strategy.

• Target Audience: The target audience should play an important role in size selection. Younger audiences may prefer smaller, less intrusive banners, while older audiences may prefer larger, highly visible ads.

• Banner Placement: Where an ad appears has a direct impact on success. Placement influences visibility, click rates, and overall campaign effectiveness. Before creating ads, you should analyze your competitors’ websites using a website traffic checker to understand which placements work best in your industry.

• Budget: The advertising budget determines which platforms and placements are affordable. Popular platforms and high-traffic websites typically have higher advertising costs.

• Message: The advertising message should be concise and fit well in the chosen space. For text-heavy content or detailed images, a larger format is needed.

Standard Banner Sizes & Formats

Standard banner sizes are defined by their height and width (in pixels) on a webpage. They determine the shape, how large or small the ad appears, and how it fits between other elements on a page.

Why Standard Sizes Matter

Using standard sizes offers several advantages:

• Compatibility: Standard sizes are supported by most ad networks
• Inventory: More available ad placements across different websites
• Cost efficiency: One-time creation for multiple placements
• Performance: Proven formats with comparable benchmarks from the same industry

History of Banner Standards

Banner ads have existed since the 1990s when the first web banner with 468×60 pixels went online. The Interactive Advertising Bureau (IAB) developed standardized formats to provide advertisers and publishers with a unified foundation.

IAB Universal Ad Package

The IAB defines the most important banner formats in the “Universal Ad Package”:

Desktop Formats

• Medium Rectangle (300×250): The most versatile format with highest inventory availability
• Leaderboard (728×90): Premium placement above content (“Above the Fold”)
• Wide Skyscraper (160×600): Vertical format for side placement
• Large Rectangle (336×280): Extended version of the Medium Rectangle

Mobile-Optimized Formats

• Mobile Banner (320×50): Standard for mobile advertising
• Mobile Leaderboard (320×100): Extended mobile version

Above the Fold vs. Below the Fold

Above the Fold refers to the area of a webpage visible without scrolling. Banners in this area:

• Achieve 73% higher click rates
• Cost 25-40% more than below-the-fold placements
• Have better brand awareness

Below the Fold placements are more cost-effective but require more creative design for attention.

Responsive vs. Fixed Banners

Fixed Banners:

• Static dimensions
• Consistent display
• Simple design and control

Responsive Banners:

• Automatically adapt to available space
• Better mobile compatibility
• More complex creation but greater reach

Performance Differences by Format

Average Click Rates (CTR) by Banner Size:

• Medium Rectangle (300×250): 0.05-0.07%
• Leaderboard (728×90): 0.04-0.06%
• Wide Skyscraper (160×600): 0.03-0.05%
• Mobile Banner (320×50): 0.08-0.12%

Factors Influencing Performance:

• Size: Larger banners receive more attention
• Placement: Above-the-fold vs. below-the-fold
• Audience: B2B vs. B2C differences
• Industry: Healthcare, finance, e-commerce perform differently
• Device type: Mobile vs. desktop user behavior

Costs and Reach

CPM (Cost per Mille) Differences:

• Premium formats (Leaderboard, Billboard): €15-25 CPM
• Standard formats (Medium Rectangle): €8-15 CPM
• Mobile formats: €5-12 CPM
• Programmatic booking: €2-8 CPM

Inventory Availability:

• Medium Rectangle: 90%+ of all websites
• Leaderboard: 70-80% of websites
• Mobile Banner: 95%+ of mobile websites
• Specialized formats: 20-40% availability

Understanding available options is important for visualizing how ads will appear, what costs will arise, and how easily they can be seen by users.

Mobile vs. Desktop Considerations

Mobile Optimization

• Smaller screens require clearer, simpler designs
• Touch interactions instead of mouse hover effects
• Faster loading times are critical
• Vertical formats often work better

Desktop Specifications

• More space for detailed information
• Hover effects and interactions possible
• Horizontal formats like leaderboard very effective
• Rich media and animations better supported

Technical Specifications

File Formats

• JPEG: Best compression for photos
• PNG: Supports transparency, ideal for logos
• HTML5: Modern and established alternative to Flash, interactive elements
• SVG: Scalable vector graphics for sharp display

File Size

• Google Display: Maximum 150KB
• Facebook: Up to 30MB for images
• General rule: As small as possible for fast loading times

Resolution

• Minimum 72 DPI for web display
• Higher resolutions recommended for Retina displays
• Consistent image quality across all devices

Common Mistakes to Avoid

Even with correct dimensions, banner ads can lose their effectiveness through avoidable mistakes. These most common problems cost performance and budget.

Design Mistakes

Poor visual design significantly reduces click rates and wastes advertising budget. These design mistakes are particularly common:

• Too much text in small formats
• Poor readability with small font sizes
• Overloaded designs with too many elements
• Inconsistent branding

Technical Mistakes

• Files that are too large and load slowly
• Wrong aspect ratios for the target platform
• Non-responsive designs
• Outdated file formats

Strategic Mistakes

When analyzing campaign performance, it’s essential to examine not just your own ads but also competitor strategies. A URL backlink checker can help you analyze competitor landing pages and understand which sites are linking to their campaigns, giving you insights into their advertising network and partnership strategies.

• No testing of different sizes
• Ignoring mobile users
• Wrong target audience approach
• Missing performance analysis

Conclusion

Choosing the right banner size is crucial for the success of digital advertising campaigns. Standard formats like the Medium Rectangle (300×250) offer the best compatibility across various platforms.

Key Points:

• Mobile-optimized formats are becoming increasingly important - vertical formats (9:16) dominate on social media
• Platform-specific adaptation is necessary - there’s no universal solution
• Google’s responsive display ads save time and maximize reach
• Technical requirements matter - file size, formats, and resolution are crucial

It’s recommended to test different ad formats for your specific target audience and platforms to find what works best for achieving better ROI and improving conversion rates. Always keep current platform specifications in mind, as they change regularly.

Ready to optimize your advertising campaigns? Start by researching the right keywords with our keyword research tool, analyze your website performance with our traffic checker, and examine competitor strategies using our URL analyzer - all completely free to test.

Looking for the best SEO tools? Check out our in-depth comparison article.