Standard Placeholder Image Sizes
Updated: May 2026
A reference table of standard image dimensions for web development, social media, email design, and display advertising. Use these sizes when setting up placeholder images for your project.
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Web & application images
| Slot | Dimensions | Notes |
|---|---|---|
| Hero banner | 1920×600 | Full-width desktop hero; crop to 1280×480 for tablet |
| Article featured image | 1200×630 | Also used as OG image; 1.91:1 ratio required by most platforms |
| Blog card thumbnail | 800×450 | 16:9 ratio; scales well in responsive grids |
| Product image (square) | 800×800 | Standard for e-commerce product listings |
| Avatar (small) | 80×80 | Comment threads, nav bars |
| Avatar (medium) | 200×200 | Profile pages, team grids |
| Background image | 1920×1080 | Full HD; use 3840×2160 for 4K displays |
| Logo placeholder | 200×60 | Typical header logo slot |
| Favicon | 32×32 | Browser tab icon; also generate at 16×16 and 48×48 |
Social media images
| Platform / format | Dimensions | Notes |
|---|---|---|
| Facebook / LinkedIn post | 1200×630 | Shared link preview; same as OG image |
| Instagram square post | 1080×1080 | Standard square post |
| Instagram portrait post | 1080×1350 | 4:5 ratio; maximum in-feed height |
| Instagram Story / Reel | 1080×1920 | 9:16 full-screen vertical |
| X (Twitter) post image | 1200×675 | 16:9 inline preview |
| YouTube thumbnail | 1280×720 | Minimum 640×360; 16:9 recommended |
| Pinterest pin | 1000×1500 | 2:3 ratio; taller pins perform better |
Display advertising (IAB standard units)
| Ad unit | Dimensions | Common name |
|---|---|---|
| Medium rectangle | 300×250 | Most common ad unit |
| Leaderboard | 728×90 | Top of page, horizontal |
| Half page | 300×600 | High impact, vertical |
| Wide skyscraper | 160×600 | Sidebar, vertical strip |
| Billboard | 970×250 | Large horizontal desktop unit |
| Mobile banner | 320×50 | Standard mobile top/bottom bar |
| Large rectangle | 336×280 | In-content unit |
Email template images
| Slot | Dimensions | Notes |
|---|---|---|
| Email header image | 600×200 | Standard 600 px wide email; keep height under 300 px |
| Hero image | 600×300 | 2:1 ratio; common for newsletter headers |
| Product thumbnail | 200×200 | Three-column product grid at 600 px container |
| Full-width banner | 1200×400 | Displayed at 600 px; retina-ready at 2× |