Enter a width and height to see the aspect ratio and the sizes that keep it.
How it works
For video, layouts, thumbnails and print.
Any width and height in pixels.
The simplified ratio and its decimal value, plus the matching sides for 1920 wide and 1080 tall.
Use the numbers in the resizer or in your design tool.
More free browser tools on Nano Banana Lab.
That the width is sixteen units for every nine of height — the shape stays the same at any size.
16:9 for video and covers, 9:16 for stories and reels, 1:1 for avatars and square posts, 4:3 and 3:2 for photography.
Because the two sides share no common divisor — 1023:769 simply is not a neat ratio. Rounding one side by a pixel usually fixes it.
Nothing at all: this is arithmetic in your browser.