The 16:9 aspect ratio means 16 units wide for every 9 units tall (a decimal ratio of 1.78:1). Below are the exact 16:9 pixel sizes, a full dimensions table, and a free calculator to convert any 16:9 ratio to width × height.
16:9 is an aspect ratio, not a fixed pixel size — any width and height that divide to 1.78 is 16:9. The most common 16:9 size is 1280 × 720 px. To get exact pixels, use the calculator below, or multiply your chosen width by 9/16 to get the height.
| Use | Pixels (W × H) |
|---|---|
| HD (720p) | 1280 × 720 |
| Full HD (1080p) | 1920 × 1080 |
| 4K UHD | 3840 × 2160 |
| YouTube thumbnail | 1280 × 720 |
Every row below is a perfect 16:9 ratio. Pick the resolution you need, or enter your own numbers in the calculator.
| Tier | Width | Height | Pixels |
|---|---|---|---|
| SD | 640 | 360 | 640 × 360 |
| HD | 853 | 480 | 853 × 480 |
| Full HD | 1280 | 720 | 1280 × 720 |
| Full HD | 1920 | 1080 | 1920 × 1080 |
| QHD+ | 2560 | 1440 | 2560 × 1440 |
| 4K | 3840 | 2160 | 3840 × 2160 |
Convert a ratio to pixels, pixels to a ratio, or resize while keeping 16:9 locked.
Common sizes for 9:16
Need to crop an image to 16:9?
Use the free 16:9 crop tool — it locks the crop box to 16:9 so the proportions are always exact.
16:9 is a ratio, not a single size — any width and height that divide to 1.78 is 16:9. The most common 16:9 pixel size is 1280 × 720. To get exact pixels, pick a width and multiply by 9/16 for the height (or use the calculator on this page).
16:9 means the width is 16 units for every 9 units of height (a decimal ratio of 1.78:1). Popular 16:9 sizes are 1280 × 720, 1920 × 1080, 3840 × 2160.
Enter any width in the calculator above and it returns the exact 16:9 height instantly (height = width × 9 ÷ 16), or enter a height to get the width. It also works in reverse: paste any pixel size and it tells you the ratio.
No. 16:9 and 9:16 use the same numbers but swapped, so one is landscape and the other portrait. 16:9 is wider than it is tall; 9:16 is the portrait version.
Use the free SammaPix crop tool: open it, choose the 16:9 preset, drag the box over the area to keep, and download. It locks to 16:9 so the proportions are always exact, and it runs 100% in your browser.
9:16 in pixels
The full-screen vertical standard — perfect for Instagram Reels and Stories, TikTok, YouTube Shorts, and Snapchat (typically 1080×1920 px).
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.
4:3 in pixels
The classic standard — perfect for traditional photography, iPad and tablet screens, older monitors and TVs, and many presentation templates.
21:9 in pixels
The cinematic ultrawide format — perfect for film-style photos, ultrawide monitor wallpapers (3440×1440 px), and wide website hero banners.