Google Display Ads Image Sizes 2026: All Image Dimensions & Formats

If you are running Google Ads or planning to start, one question always comes up: “Which image size should I use to get better ad performance?” In my experience, most people make mistakes here. They focus only on design but ignore image sizes and ratios, which leads to lower reach and fewer clicks. In this blog, I’ll explain Google Display Ads Image Sizes 2026 in a simple and practical way so you can use the right dimensions and get better results. Google Display Ads Image Sizes (For Responsive Ads) Today, Google mostly prefers Responsive Display Ads. This means you should upload images in different ratios so Google can adjust them across placements. Square Image (1:1 Ratio) Ideal Size: 1200 × 1200 px Minimum Size: 300 × 300 px This is the most basic and essential format You should include this in every campaign Landscape Image (1.91:1 Ratio) Ideal Size: 1200 × 628 px Minimum Size: 600 × 314 px In my experience, this size often gets the most clicks It gives a clean, social media-style look Vertical Image (4:5 Ratio) Ideal Size: 1200 × 960 px Minimum Size: 480 × 600 px Very effective for mobile users Must use if your audience is mostly on mobile Logo Size (For Branding) Ideal Size: 1200 × 1200 px Minimum Size: 128 × 128 px Important for brand visibility Keep your logo simple and clear File Size Limit Maximum: 5120 KB (5MB) Heavy images can slow down performance or even get rejected Top Performing Google Display Ad Sizes (Banner Ads) If you are creating traditional banner ads, these sizes are widely used: 300 × 250 px → Medium Rectangle (most popular) 728 × 90 px → Leaderboard 160 × 600 px → Wide Skyscraper 300 × 600 px → Half Page Ad 320 × 50 px → Mobile Leaderboard Most people make the mistake of using only one size Using multiple sizes improves performance significantly Image Format & Important Guidelines Supported File Types JPG PNG GIF Recommended Aspect Ratios 1:1 1.91:1 4:5 Best Practice Upload at least 4–5 images in different sizes Why? Google automatically selects the best-performing combination Your ads appear in more placements Reach and conversions improve Related Helpful Resources To learn more, you can also explore: digital marketing services social media marketing for business google ads campaign setup guide These topics will help you build a stronger understanding Conclusion If you want your ads to perform well, don’t just focus on design— pay equal attention to Google Display Ads Image Sizes and dimensions. In my experience, when you use the right sizes, correct ratios, and multiple images: CTR increases Reach improves Conversions get better Remember: “The right size plays a key role in your ad’s success.” Call To Action If you found this post helpful: Like this post Share it with your friends Comment below and let us know your feedback Your feedback really matters to us Contact: +91 7091060239 FAQs (Your Questions Answered) Q1. What is the best image size for Google Display Ads? 300×250 and 1200×628 are among the best-performing sizes Q2. Is it okay to use only one image size? No, you should use at least 4–5 different sizes Q3. Which ratio works best in Google Display Ads? 1:1, 1.91:1, and 4:5 are the most recommended Q4. What is the maximum file size allowed? Up to 5MB (5120 KB) Q5. Which image formats should I use? JPG, PNG, and GIF work best