Widescreen ratio calculator
16:9 Aspect Ratio Calculator
16:9 is the standard widescreen shape for video, presentation slides, livestream layouts, YouTube thumbnails, and most modern displays.
16:9
Live preview follows the selected ratio.
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
Common 16:9 Resolution Answers
Extra guidance
Helpful Details For This Calculator
16:9 Formula
Use width x 9 / 16 to find height, or height x 16 / 9 to find width. The calculator above keeps the ratio locked so the image or video is not stretched.
- 1600 width becomes 1600 x 900.
- 1200 width becomes 1200 x 675.
- 1080 height becomes 1920 x 1080.
When To Use 16:9
16:9 is usually the safest horizontal format for video, slides, livestream graphics, YouTube thumbnails, TV screens, and many website hero images.
- Use 1280 x 720 for lightweight HD drafts.
- Use 1920 x 1080 for standard Full HD exports.
- Use 3840 x 2160 for 4K masters when file size is acceptable.
Common 16:9 Aspect Ratio 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 |
|---|---|---|
| Small 16:9 preview | 640 x 360 | 16:9 |
| HD | 1280 x 720 | 16:9 |
| Full HD | 1920 x 1080 | 16:9 |
| 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
Use 16:9 for most horizontal video exports.
Avoid cropping portraits into 16:9 without checking the subject.
For slides, keep text inside a safe margin.
Frequently Asked Questions
What size is 16:9?
16:9 is a shape, not one fixed size. Common sizes include 1280 x 720, 1920 x 1080, 2560 x 1440, and 3840 x 2160.
How do I know if my image is 16:9?
Divide width by height. A 16:9 image is about 1.7778. You can also simplify the width and height to see whether it becomes 16:9.
What is 16:9 in pixels?
16:9 can be many pixel sizes. Common examples are 640 x 360, 1280 x 720, 1920 x 1080, 2560 x 1440, and 3840 x 2160.
How do I resize a picture to 16:9 without distortion?
Lock the aspect ratio, crop only if the original shape is different, and export at a 16:9 size such as 1920 x 1080 or 1280 x 720.
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.
