Calculate any 16:9 dimension, explore standard resolutions from 720p to 8K, and learn where this ratio is used.
Enter a width to calculate height, or enter a height to calculate width. The other field updates automatically.
All of these resolutions share the exact 16:9 ratio. Click the copy button to copy the dimensions.
| Name | Width | Height | Megapixels | Use Case | Copy |
|---|---|---|---|---|---|
| nHD | 640 | 360 | 0.23 MP | Low-res thumbnails, video calls | |
| HD 720p | 1280 | 720 | 0.92 MP | HD video streaming, YouTube | |
| Full HD 1080p Most common | 1920 | 1080 | 2.07 MP | Standard HD, streaming, monitors | |
| QHD 1440p | 2560 | 1440 | 3.69 MP | PC gaming monitors, high-end laptops | |
| 4K UHD | 3840 | 2160 | 8.29 MP | 4K TV, Netflix 4K, YouTube 4K | |
| 8K UHD | 7680 | 4320 | 33.18 MP | 8K displays, cinema production |
The 16:9 aspect ratio (or 1.78:1) means the image is 16 units wide for every 9 units tall. It is the dominant widescreen format used by virtually every TV, computer monitor, laptop, and online video platform today. The ratio was standardized by the ITU-R BT.709 recommendation in 1990 as the global HDTV format, chosen as a mathematical compromise between earlier cinema (2.39:1) and broadcast (4:3) formats.
Before 16:9, television used 4:3 (1.33:1) — a nearly square format based on early cinema conventions. The transition to widescreen began in the 1990s with HDTV standards and accelerated in the 2000s as flat-panel displays replaced CRT TVs. By 2010, 16:9 had become the global standard for broadcast, streaming, and computer displays. Most smartphones also record video in 16:9 by default (landscape orientation).
Television (HD and 4K broadcasts), streaming platforms (YouTube, Netflix, Disney+, Hulu), PC and laptop monitors, game consoles and gaming monitors, digital projectors, video conferencing (Zoom, Teams, Google Meet), PowerPoint and Keynote slide decks (since 2013), DSLR and mirrorless camera video modes, and screen capture tools — all use 16:9 as their default or primary format.
Compared to 4:3, the 16:9 frame is wider and provides a more cinematic viewing experience. Compared to 21:9 ultrawide, 16:9 is narrower and better suited for traditional video content. For vertical mobile content, 9:16 (the inverse of 16:9) is used. For print and photography, 3:2 is more common, reflecting 35mm film proportions.