The 3:4 aspect ratio means 3 units wide for every 4 units tall (a decimal ratio of 0.75:1). Below are the exact 3:4 pixel sizes, a full dimensions table, and a free calculator to convert any 3:4 ratio to width × height.
3:4 is an aspect ratio, not a fixed pixel size — any width and height that divide to 0.75 is 3:4. The most common 3:4 size is 1200 × 1600 px. To get exact pixels, use the calculator below, or multiply your chosen width by 4/3 to get the height.
| Use | Pixels (W × H) |
|---|---|
| Product photo | 1200 × 1600 |
| Mobile portrait | 1080 × 1440 |
Every row below is a perfect 3:4 ratio. Pick the resolution you need, or enter your own numbers in the calculator.
| Tier | Width | Height | Pixels |
|---|---|---|---|
| SD | 360 | 480 | 360 × 480 |
| SD | 480 | 640 | 480 × 640 |
| HD | 720 | 960 | 720 × 960 |
| Full HD | 1080 | 1440 | 1080 × 1440 |
| Full HD | 1440 | 1920 | 1440 × 1920 |
| QHD+ | 2160 | 2880 | 2160 × 2880 |
Convert a ratio to pixels, pixels to a ratio, or resize while keeping 3:4 locked.
Common sizes for 9:16
Need to crop an image to 3:4?
Use the free 3:4 crop tool — it locks the crop box to 3:4 so the proportions are always exact.
3:4 is a ratio, not a single size — any width and height that divide to 0.75 is 3:4. The most common 3:4 pixel size is 1200 × 1600. To get exact pixels, pick a width and multiply by 4/3 for the height (or use the calculator on this page).
3:4 means the width is 3 units for every 4 units of height (a decimal ratio of 0.75:1). Popular 3:4 sizes are 1200 × 1600, 1080 × 1440.
Enter any width in the calculator above and it returns the exact 3:4 height instantly (height = width × 4 ÷ 3), or enter a height to get the width. It also works in reverse: paste any pixel size and it tells you the ratio.
No. 3:4 and 4:3 use the same numbers but swapped, so one is landscape and the other portrait. 3:4 is taller than it is wide; 4:3 is the landscape version.
Use the free SammaPix crop tool: open it, choose the 3:4 preset, drag the box over the area to keep, and download. It locks to 3:4 so the proportions are always exact, and it runs 100% in your browser.
4:3 in pixels
The classic standard — perfect for traditional photography, iPad and tablet screens, older monitors and TVs, and many presentation templates.
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.
2:3 in pixels
The vertical version of 3:2 — perfect for Pinterest pins (1000×1500 px), portrait photo prints, and posters where height carries the composition.
9:16 in pixels
The full-screen vertical standard — perfect for Instagram Reels and Stories, TikTok, YouTube Shorts, and Snapchat (typically 1080×1920 px).