The 1:1 aspect ratio means 1 units wide for every 1 units tall (a decimal ratio of 1:1). Below are the exact 1:1 pixel sizes, a full dimensions table, and a free calculator to convert any 1:1 ratio to width × height.
1:1 is an aspect ratio, not a fixed pixel size — any width and height that divide to 1 is 1:1. The most common 1:1 size is 1080 × 1080 px. To get exact pixels, use the calculator below, or multiply your chosen width by 1/1 to get the height.
| Use | Pixels (W × H) |
|---|---|
| Instagram square | 1080 × 1080 |
| Profile picture | 320 × 320 |
| Album cover | 3000 × 3000 |
Every row below is a perfect 1:1 ratio. Pick the resolution you need, or enter your own numbers in the calculator.
| Tier | Width | Height | Pixels |
|---|---|---|---|
| SD | 360 | 360 | 360 × 360 |
| SD | 480 | 480 | 480 × 480 |
| HD | 720 | 720 | 720 × 720 |
| Full HD | 1080 | 1080 | 1080 × 1080 |
| Full HD | 1440 | 1440 | 1440 × 1440 |
| QHD+ | 2160 | 2160 | 2160 × 2160 |
Convert a ratio to pixels, pixels to a ratio, or resize while keeping 1:1 locked.
Common sizes for 9:16
Need to crop an image to 1:1?
Use the free 1:1 crop tool — it locks the crop box to 1:1 so the proportions are always exact.
1:1 is a ratio, not a single size — any width and height that divide to 1 is 1:1. The most common 1:1 pixel size is 1080 × 1080. To get exact pixels, pick a width and multiply by 1/1 for the height (or use the calculator on this page).
1:1 means the width is 1 units for every 1 units of height (a decimal ratio of 1:1). Popular 1:1 sizes are 1080 × 1080, 320 × 320, 3000 × 3000.
Enter any width in the calculator above and it returns the exact 1:1 height instantly (height = width × 1 ÷ 1), or enter a height to get the width. It also works in reverse: paste any pixel size and it tells you the ratio.
No. 1:1 and 1:1 use the same numbers but swapped, so one is landscape and the other portrait. 1:1 is wider than it is tall; 1:1 is the portrait version.
Use the free omnikitbolt crop tool: open it, choose the 1:1 preset, drag the box over the area to keep, and download. It locks to 1:1 so the proportions are always exact, and it runs 100% in your browser.
4:5 in pixels
The tallest format Instagram allows in the feed — perfect for portrait feed posts (1080×1350 px) that take up maximum screen space, plus Pinterest and portrait layouts.
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.
9:16 in pixels
The full-screen vertical standard — perfect for Instagram Reels and Stories, TikTok, YouTube Shorts, and Snapchat (typically 1080×1920 px).
4:3 in pixels
The classic standard — perfect for traditional photography, iPad and tablet screens, older monitors and TVs, and many presentation templates.
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