21:9 Aspect Ratio
21:9 (sometimes called ultrawide) provides a much wider field of view than standard 16:9 monitors. It is popular for gaming (eliminating the need for multiple monitors), cinematic video production, and productivity workflows. Many cinematic films shot in 2.35:1 or 2.39:1 appear close to 21:9 when displayed on an ultrawide screen.
Open 21:9 Calculator →Common 21:9 Dimensions
| Name | Width | Height | Common Use |
|---|---|---|---|
| FHD Ultrawide | 2,560 | 1,080 | Entry ultrawide gaming, budget monitors |
| QHD Ultrawide | 3,440 | 1,440 | Standard premium ultrawide |
| 5K Ultrawide | 5,120 | 2,160 | Pro workstation, LG 34WK95U |
Where is 21:9 Used?
- →Ultrawide gaming monitors
- →Video editing and colour grading workstations
- →Multi-application productivity
- →Cinematic film viewing (minimal letterboxing)
- →Flight simulators and racing games
Frequently Asked Questions
Is 21:9 actually 21 to 9?+
Not exactly — the name '21:9' is a marketing label. Most ultrawide monitors have a ratio closer to 64:27 (2.370:1) or 43:18 (2.388:1). The actual ratio depends on the specific resolution (e.g., 3440×1440 = 43:18).
Do all games support 21:9?+
Many modern games natively support 21:9 ultrawide. Some older titles or certain multiplayer games restrict the field of view to 16:9 to prevent competitive advantages. Check a game's settings or community sites for ultrawide support status.
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