16:9 ratio calculator
16:9 Calculator
Enter any width or height and instantly calculate the matching 16:9 dimension for videos, thumbnails, slides, screens, banners, and exports.
16:9
Live preview follows the selected ratio.
For the meaning of the ratio, read the 16:9 size and cropping guide. For a file preview and PNG export, open the wallpaper planner.
Calculator
Calculate The Missing Dimension
Choose a ratio, enter width or height, and the calculator fills the matching dimension while keeping the image or video proportional.
Fast answers
16:9 Calculator Quick Answers
Common 16:9 Calculator Sizes
Use these sizes as starting points. Exact platform requirements can change, so treat the calculator as the proportional reference and check the final upload screen before publishing.
| Use case | Pixel size | Ratio |
|---|---|---|
| 360p | 640 x 360 | 16:9 |
| 720p HD | 1280 x 720 | 16:9 |
| 1080p Full HD | 1920 x 1080 | 16:9 |
| 1440p QHD | 2560 x 1440 | 16:9 |
| 4K UHD | 3840 x 2160 | 16:9 |
Generated Size Table
The table below updates when you choose a new ratio. It is useful for planning responsive images, thumbnails, and video exports.
| Width | Matching height | Size |
|---|
Practical Tips
For a 16:9 height, divide width by 16 and multiply by 9.
For a 16:9 width, divide height by 9 and multiply by 16.
For an exact integer-pixel 16:9 size, choose a width divisible by 16 and a height equal to that width times 9 / 16. Check encoder constraints separately.
Frequently Asked Questions
What is the formula for 16:9?
Height equals width times 9 divided by 16. Width equals height times 16 divided by 9.
Is 1920 x 1080 a 16:9 resolution?
Yes. 1920 x 1080 simplifies to 16:9 and is commonly called Full HD.
Is 1280 x 720 the same aspect ratio as 1920 x 1080?
Yes. Both are 16:9. They have different pixel counts but the same widescreen shape.
Why does a width of 1080 produce a height of 608?
The exact height is 1080 × 9 / 16 = 607.5 pixels. A bitmap needs whole pixels, so 608 is a rounded approximation, not exact 16:9. If both dimensions may change, 1072 × 603 or 1088 × 612 are nearby exact 16:9 sizes; your video encoder may impose additional even-dimension requirements.
Can this calculator crop or resize an image file?
This calculator calculates dimensions only. For a centered crop, fit preview and local PNG export, use the wallpaper crop and fit planner linked on this page.
Visual Ratio Reference
This reference chart shows how common frames compare. Use it when deciding whether a creative should be wide, square, portrait, or ultrawide.
