Free 4:3 aspect ratio calculator for classic monitors, projectors, and presentations. Find width or height for 1024x768, 1600x1200, and custom sizes.
The 4:3 aspect ratio was the standard for CRT televisions and early computer monitors. It is slightly wider than tall – 4 units wide for every 3 units tall.
While 16:9 has largely replaced 4:3 for video and monitors, it is still used for some projectors, presentations, and legacy content.
If you're working with older equipment or creating slides for a projector, 4:3 remains a relevant format.
These are widely used 4:3 pixel dimensions.
| Resolution | Width | Height | Pixel Count |
|---|---|---|---|
| VGA | 640 | 480 | 307,200 |
| SVGA | 800 | 600 | 480,000 |
| XGA | 1024 | 768 | 786,432 |
| SXGA+ | 1400 | 1050 | 1,470,000 |
| UXGA | 1600 | 1200 | 1,920,000 |
Use this calculator when working with older projectors, standard monitors, or documents that need a 4:3 layout. It ensures your content fits correctly without distortion.
Simply enter either dimension and the other will be calculated automatically.
4:3 was used for old TVs and computer monitors. It is still common for projectors, presentations, and some tablets.
Common 4:3 resolutions are 640x480, 800x600, 1024x768, and 1600x1200.
Yes, many projectors and business presentations still use 4:3. It is also used in some document formats and older video content.