4K UHD Resolution: 3840x2160
4K UHD = 3840 x 2160 pixels, a 16:9 aspect ratio with four times the pixels of 1080p. Used by 4K TVs and YouTube 4K.
Open the interactive Standards & Sizes tool →Key facts
| Resolution | 3840 x 2160 |
|---|---|
| Aspect ratio | 16:9 |
| Total pixels | ≈ 8.29 megapixels |
| vs 1080p | 4 x the pixels |
Frequently asked questions
What is 4K UHD resolution?
4K UHD is 3840 x 2160 pixels (16:9), four times the pixel count of Full HD 1080p.
Is 4K UHD the same as DCI 4K?
No. Consumer 4K UHD is 3840x2160; cinema DCI 4K is 4096x2160 (slightly wider).
Related pages
4K UHD Resolution is part of Standards & Sizes on GOAT Lab — a free reference you can use without signing up, and it works offline. Open the tool above for any custom value.
Part of GOAT Lab — 26 free, browser-based science, engineering and developer tools. No sign-up.