The 2:1 aspect ratio means 2 units wide for every 1 units tall (a decimal ratio of 2:1). Below are the exact 2:1 pixel sizes, a full dimensions table, and a free calculator to convert any 2:1 ratio to width × height.
2:1 is an aspect ratio, not a fixed pixel size — any width and height that divide to 2 is 2:1. The most common 2:1 size is 1200 × 600 px. To get exact pixels, use the calculator below, or multiply your chosen width by 1/2 to get the height.
| Use | Pixels (W × H) |
|---|---|
| X (Twitter) card | 1200 × 600 |
| Web banner | 1600 × 800 |
Every row below is a perfect 2:1 ratio. Pick the resolution you need, or enter your own numbers in the calculator.
| Tier | Width | Height | Pixels |
|---|---|---|---|
| HD | 720 | 360 | 720 × 360 |
| HD | 960 | 480 | 960 × 480 |
| Full HD | 1440 | 720 | 1440 × 720 |
| QHD+ | 2160 | 1080 | 2160 × 1080 |
| QHD+ | 2880 | 1440 | 2880 × 1440 |
| 4K | 4320 | 2160 | 4320 × 2160 |
Convert a ratio to pixels, pixels to a ratio, or resize while keeping 2:1 locked.
Common sizes for 9:16
Need to crop an image to 2:1?
Use the free 2:1 crop tool — it locks the crop box to 2:1 so the proportions are always exact.
2:1 is a ratio, not a single size — any width and height that divide to 2 is 2:1. The most common 2:1 pixel size is 1200 × 600. To get exact pixels, pick a width and multiply by 1/2 for the height (or use the calculator on this page).
2:1 means the width is 2 units for every 1 units of height (a decimal ratio of 2:1). Popular 2:1 sizes are 1200 × 600, 1600 × 800.
Enter any width in the calculator above and it returns the exact 2:1 height instantly (height = width × 1 ÷ 2), or enter a height to get the width. It also works in reverse: paste any pixel size and it tells you the ratio.
No. 2:1 and 1:2 use the same numbers but swapped, so one is landscape and the other portrait. 2:1 is wider than it is tall; 1:2 is the portrait version.
Use the free SammaPix crop tool: open it, choose the 2:1 preset, drag the box over the area to keep, and download. It locks to 2:1 so the proportions are always exact, and it runs 100% in your browser.
21:9 in pixels
The cinematic ultrawide format — perfect for film-style photos, ultrawide monitor wallpapers (3440×1440 px), and wide website hero banners.
16:9 in pixels
The widescreen standard — perfect for YouTube thumbnails and videos (1280×720, 1920×1080), presentation slides, desktop wallpapers, and any 16:9 display or player.
4:3 in pixels
The classic standard — perfect for traditional photography, iPad and tablet screens, older monitors and TVs, and many presentation templates.
1:1 in pixels
The classic square — perfect for Instagram feed posts, profile pictures and avatars, album covers, and product thumbnails that display as a square.