11 Aug 2026
Ad Sizes Cheat Sheet: Every Platform's Dimensions
Running the same campaign across platforms means producing the same idea in a lot of different shapes. Here is a practical reference for the sizes that matter, and why they exist.
Instagram & Facebook
- Square post — 1080×1080. The safe default for feed.
- Portrait post — 1080×1350. Takes up more screen and usually outperforms the square in feed.
- Story / Reel — 1080×1920. Full-screen vertical; keep text away from the top and bottom edges.
- Facebook feed — 1200×628. The classic link-ad landscape.
Google Display
- Leaderboard — 728×90 and Medium rectangle — 300×250, the two most-served banner sizes.
- Half page — 300×600 and large mobile — 320×100 round out the set.
Other placements
- LinkedIn — 1200×627 for single-image ads.
- Pinterest — 1000×1500, tall by design.
- YouTube / video cover — 1920×1080 for 16:9 thumbnails and covers.
The practical takeaway
You do not need to memorize these. The point is that one campaign needs many exact sizes, and producing them by hand is where the hours go. Adfinery keeps every one of these as a preset and adapts a single design to all of them at once, so the campaign stays consistent and correctly sized everywhere it runs.