Classic ratio calculator
4:3 is useful for older displays, document-friendly visuals, classic camera crops, and some presentation formats.
Live preview follows the selected ratio.
Calculator
Choose a ratio, enter width or height, and the calculator fills the matching dimension while keeping the image or video proportional.
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 |
|---|---|---|
| SVGA | 800 x 600 | 4:3 |
| XGA | 1024 x 768 | 4:3 |
| UXGA | 1600 x 1200 | 4:3 |
| QXGA | 2048 x 1536 | 4:3 |
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 |
|---|
4:3 gives more vertical space than 16:9.
Check modern platform requirements before uploading.
Use it for diagrams when width is limited.
This reference chart shows how common frames compare. Use it when deciding whether a creative should be wide, square, portrait, or ultrawide.
