Complete Ad Image Sizes & Specifications Guide

Why Ad Image Specifications Matter

Ad performance directly correlates with proper image sizing. Ads that meet platform specifications achieve higher click-through rates, lower cost-per-click, and better conversion rates. Platforms like Google and Facebook reward compliance with their technical guidelines through improved ad rotation and placement.

Google Display Network Ad Sizes

Google Display Network supports multiple ad formats. The most effective sizes are:

• Medium Rectangle: 300 x 250 px - highest performing standard ad unit
• Leaderboard: 728 x 90 px - header/footer placement
• Skyscraper: 160 x 600 px - sidebar placements
• Half-page: 300 x 600 px - high-impact premium placement
• Billboard: 970 x 250 px - premium above-the-fold position

Using these standard sizes ensures maximum inventory availability across the Google Display Network, reaching millions of websites and apps.

Facebook & Instagram Ad Dimensions

Meta platforms support multiple ad placements with specific dimension recommendations. Feed ads should be square (1080 x 1080 px), while Story ads are vertical (1080 x 1920 px). Carousel ads follow the same square format for each card, allowing for compelling multi-image storytelling.

LinkedIn Advertising Specifications

LinkedIn ads targeting professionals and B2B audiences use 1200 x 627 px dimensions. This 1.91:1 ratio ensures optimal display across desktop and mobile, maximizing visibility in professional feeds.

Performance Tips for Ad Creatives

• Use bold, contrasting colors to stand out in crowded feeds
• Include clear calls-to-action (CTA) buttons in your design
• Test multiple image variations to identify top performers
• Ensure text takes up no more than 20% of the image
• Resize images precisely to avoid platform compression artifacts
• Use high-resolution source images (minimum 72 DPI)

Common Ad Mistakes to Avoid

• Using incorrect dimensions leading to auto-cropping
• Uploading low-resolution images that appear pixelated
• Exceeding Facebook's 20% text rule, which reduces ad delivery
• Using inappropriate file formats or sizes
• Ignoring platform-specific design guidelines