Aspect ratios, solved
An aspect ratio is the relationship between a frame's width and its height. Every ad platform expects specific ones, and the wrong ratio is the single most common reason creative gets cropped, letterboxed or rejected. Each page below gives the exact pixel sizes, the millimetre and inch equivalents, and the placements that use the ratio natively.
Open the aspect ratio calculatorEvery ratio, at a glance
| Ratio | Decimal | Standard pixels | Known as | Placements |
|---|---|---|---|---|
| 16:9 | 1.778:1 | 1280×720 | Widescreen | 7 |
| 9:16 | 0.563:1 | 1080×1920 | Vertical full-screen | 10 |
| 4:5 | 0.800:1 | 1080×1350 | Feed portrait | 2 |
| 1:1 | 1.000:1 | 1080×1080 | Square | 5 |
| 1.91:1 | 1.910:1 | 1200×628 | Link-preview landscape | 1 |
| 4:3 | 1.333:1 | 1024×768 | Classic landscape | 0 |
| 3:2 | 1.500:1 | 1200×800 | Photographic landscape | 0 |
| 2:3 | 0.667:1 | 1000×1500 | Pinterest portrait | 2 |
| 21:9 | 2.333:1 | 2560×1097 | Ultrawide | 0 |
| 2.39:1 | 2.390:1 | 2048×857 | Anamorphic cinema | 0 |
| 5:4 | 1.250:1 | 1280×1024 | Near-square landscape | 0 |
| 2:1 | 2.000:1 | 1600×800 | Wide banner | 0 |
| 3:1 | 3.000:1 | 1500×500 | Panoramic banner | 0 |
| 8:1 | 8.000:1 | 1456×182 | Leaderboard strip | 1 |
| 1:2 | 0.500:1 | 600×1200 | Tall vertical | 1 |
| 6:5 | 1.200:1 | 1200×1000 | Slightly wide | 1 |
| 16:5 | 3.200:1 | 1640×513 | Wide cover | 1 |
| 2.7:1 | 2.700:1 | 2560×948 | Masthead wide | 1 |
The standard landscape video ratio — 1920×1080 px, 1.778:1 — used by YouTube in-stream, Meta landscape video and every HD display.
The full-screen mobile ratio — 1080×1920 px — used by Reels, Stories, TikTok, Shorts and Spark ads.
The highest-performing feed ratio — 1080×1350 px — the tallest frame Meta and Instagram will show in-feed.
The universal square — 1080×1080 px — accepted by every marketplace and the safest fallback ratio.
The link-ad and social-preview ratio — 1200×628 px — used by Meta link ads, LinkedIn single image and Open Graph cards.
The classic 1.333:1 landscape frame — 1440×1080 px — still used by display, email and older video libraries.
The 35mm photography ratio — 1.5:1 — native to most DSLR and mirrorless sensors and to standard print sizes.
The Pinterest standard-pin ratio — 1000×1500 px — the tallest pin shape that never gets truncated.
The ultrawide ratio — 2560×1080 px — used for cinematic hero banners and ultrawide displays.
The modern cinema ratio — 1920×803 px — used for film-look brand work and letterboxed hero video.
A near-square landscape ratio — 1280×1024 px — common in print (8×10 in) and legacy display units.
A clean 2:1 banner ratio — 1200×600 px — used for email headers, blog covers and wide display units.
A panoramic 3:1 strip — 1500×500 px — used for profile headers and wide site banners.
The display leaderboard proportion — 728×90 px — the most-served banner unit on the open web.
A tall 1:2 vertical — 300×600 px — the half-page display unit that dominates sidebar inventory.
A gently landscape 6:5 frame — 1200×1000 px — used by some Marketplace and catalogue placements.
The Facebook cover proportion — 820×312 px — a wide cover strip that crops hard on mobile.
The YouTube masthead proportion — 1920×711 px — a very wide brand banner for homepage takeovers.
One master. Every ratio.
Xeli re-frames each creative to the native ratio and safe zone of every placement, per SKU, automatically — no manual cropping.
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