Resolution reference
1284 × 2778 resolution (iPhone 12 and 13 Pro Max, 14 Plus)
Short answer
1284 × 2778 (2778x1284, iPhone 12 and 13 Pro Max, 14 Plus) is a 214:463 portrait resolution with 3,566,952 pixels (3.57 megapixels). The 6.7-inch screen of iPhone 12 Pro Max, iPhone 13 Pro Max and iPhone 14 Plus.
Key takeaways
- 1284 × 2778 is 214:463 (close to 9:19.5), portrait, 3,566,952 pixels (3.57 MP).
- The 6.7-inch screen of iPhone 12 Pro Max, iPhone 13 Pro Max and iPhone 14 Plus.
- For video, YouTube's 1080p tier applies: 8 Mbps at 24-30 fps, about 60 MB a minute.
- Printed at 300 DPI it is 4.3 × 9.3 inches.
1284 × 2778 specifications
| Width × height | 1,284 × 2,778 pixels |
|---|---|
| Also called | 1284x2778, 2778x1284, iPhone 12 and 13 Pro Max, 14 Plus |
| Aspect ratio | 214:463 (about 9:19.5), decimal 0.4622 |
| Orientation | portrait |
| Total pixels | 3,566,952 (3.57 megapixels) |
| Compared with 1080p | 1.72× the pixels of 1920 × 1080 |
| Diagonal | 3,060 pixels |
| Rotated | 2778 × 1284 |
| Encoder safe | Yes: both sides are even, as H.264 and HEVC with 4:2:0 color require |
1284 × 2778 compared with common resolutions
| Resolution | Pixels | 1284 × 2778 has |
|---|---|---|
| 720p (1280 × 720) | 921,600 | 3.87× as many |
| 1080p (1920 × 1080) | 2,073,600 | 1.72× as many |
| 1440p (2560 × 1440) | 3,686,400 | 97% as many |
| 4K UHD (3840 × 2160) | 8,294,400 | 43% as many |
1284 × 2778 vs 1920 × 1080 and 1284 × 2778 vs 2560 × 1440
1284 × 2778 has 72% more pixels than 1080p (1920 × 1080). On a 6.7-inch phone that is 457 vs 329 pixels per inch, so text and fine detail look sharper at 1284 × 2778. A game or encoder has to process 1.72× as many pixels per frame, which costs frame rate on the same graphics card and, at equal quality, file size.
1440p (2560 × 1440) has 3% more pixels than 1284 × 2778. On a 6.7-inch phone that is 457 vs 438 pixels per inch, so text and fine detail look softer at 1284 × 2778. A game or encoder processes only 97% as many pixels per frame, which helps frame rates and keeps files smaller.
| 1284 × 2778 | 1080p (1920 × 1080) | 1440p (2560 × 1440) | |
|---|---|---|---|
| Pixels | 3,566,952 | 2,073,600 | 3,686,400 |
| Aspect ratio | 214:463 | 16:9 | 16:9 |
| YouTube bitrate, 24-30 fps | 8 Mbps | 8 Mbps | 16 Mbps |
| Desktop space (vs 1080p) | 172% | 100% | 178% |
Where 1284 × 2778 is used
- The 6.7-inch screen of iPhone 12 Pro Max, iPhone 13 Pro Max and iPhone 14 Plus (458 ppi).
- Screen recordings from these phones, which need a slight crop for 9:16.
- Wallpapers and App Store screenshots for these models.
Pixel density (PPI) by screen size
Pixel density is the diagonal in pixels (3,060) divided by the screen diagonal in inches. The last column is the distance at which a person with normal vision stops seeing individual pixels (one arcminute of visual acuity).
| Device | Screen | PPI |
|---|---|---|
| iPhone 12 Pro Max | 6.7 inches | 458 |
| iPhone 13 Pro Max | 6.7 inches | 458 |
| iPhone 14 Plus | 6.7 inches | 458 |
| Screen diagonal | PPI | Pixels blend at about |
|---|---|---|
| 6.1 inches | 502 | 7 in (17 cm) |
| 6.3 inches | 486 | 7 in (18 cm) |
| 6.7 inches | 457 | 8 in (19 cm) |
| 6.9 inches | 444 | 8 in (20 cm) |
Print sizes for a 1284 × 2778 image
| Print resolution | Inches | Centimeters | Good for |
|---|---|---|---|
| 300 DPI | 4.3 × 9.3 | 10.9 × 23.5 | Photo prints, magazines |
| 240 DPI | 5.3 × 11.6 | 13.6 × 29.4 | Inkjet photo prints |
| 150 DPI | 8.6 × 18.5 | 21.7 × 47.0 | Posters seen from a meter or more |
| 72 DPI | 17.8 × 38.6 | 45.3 × 98.0 | Screen only; too coarse for print |
Free tool:DPI and print size calculator
Video at 1284 × 2778: bitrate and file size
| Frame rate | Bitrate | Per minute | Per 10 minutes |
|---|---|---|---|
| 24-30 fps | 8 Mbps | about 60 MB | about 600 MB |
| 48-60 fps | 12 Mbps | about 90 MB | about 900 MB |
Uncompressed, one 1284 × 2778 frame is 10.7 MB as 8-bit RGB, or 5.4 MB in the 8-bit 4:2:0 format video codecs work in. At 30 fps that is 1,284 Mbps of raw video, which is why every delivery format compresses it.
Posting 1284 × 2778 to social platforms
How the frame lands in each common shape, either fitted whole with bars or scaled up to fill and cropped:
| Target frame | Fit with bars | Fill and crop |
|---|---|---|
| 9:16 (TikTok, Reels, Shorts), 1080 × 1920 | 888 × 1920 picture, 18% of the frame is bars | Keeps 82% of the picture (crops the height) |
| 16:9 (YouTube), 1920 × 1080 | 500 × 1080 picture, 74% of the frame is bars | Keeps 26% of the picture (crops the height) |
| 4:5 (feed portrait), 1080 × 1350 | 624 × 1350 picture, 42% of the frame is bars | Keeps 58% of the picture (crops the height) |
| 1:1 (square), 1080 × 1080 | 500 × 1080 picture, 54% of the frame is bars | Keeps 46% of the picture (crops the height) |
Free tools:Crop video to 9:16Crop video to 16:9Crop an image to 4:5
How to resize to 1284 × 2778
- In an editor, set the sequence or export frame size to 1284 × 2778; if the source has a different shape, choose scale to fill (crop) or scale to fit (bars) rather than stretch.
- With FFmpeg, exact size:
ffmpeg -i in.mp4 -vf scale=1284:2778 -c:a copy out.mp4 - With FFmpeg, keep the whole picture and add bars:
ffmpeg -i in.mp4 -vf "scale=1284:2778:force_original_aspect_ratio=decrease,pad=1284:2778:(ow-iw)/2:(oh-ih)/2" -c:a copy out.mp4 - Upscaling a smaller source to 1284 × 2778 makes the file bigger without adding detail; scale down from a larger master when you can.
| Scale | Size | Pixels |
|---|---|---|
| 25% | 322 × 694 | 223,468 |
| 50% | 642 × 1390 | 892,380 |
| 75% | 964 × 2084 | 2,008,976 |
| 150% | 1926 × 4168 | 8,027,568 |
| 200% | 2568 × 5556 | 14,267,808 |
Same 214:463 shape:1170 × 25321179 × 25561206 × 26221260 × 27361290 × 27961320 × 2868828 × 17921440 × 31201080 × 2340
Check a file against 1284 × 2778
Extension and MIME type are labels, not proof of the container. Dimensions and duration come from this browser's media reader. The frame rate is measured by playing the first frames muted; a file faster than your screen's refresh rate reads low. This does not detect codecs, bitrate, corruption or platform upload compatibility. Files and measurements are not sent anywhere.
Frequently asked questions
Is 1284×2778 4K?
No. 4K UHD is 3840×2160 (8,294,400 pixels); 1284×2778 has 3,566,952, 43% of that. By its 1284-pixel short side it falls in YouTube's 1080p quality tier.
What aspect ratio is 1284×2778?
214:463 exactly (0.4622), within 1% of 9:19.5, so it fits a 9:19.5 frame with a tiny crop or thin bars.
What bitrate should a 1284×2778 video use for YouTube?
YouTube recommends 8 Mbps at 24-30 fps and 12 Mbps at 48-60 fps for its 1080p tier (SDR). That is about 60 MB per minute at standard frame rates, before audio.
How does 1284×2778 compare with 1080p?
It has 1.72× the pixels of 1920×1080 (3,566,952 vs 2,073,600). Encoding time and file size at equal quality scale roughly with pixel count.
What is 1284×2778 resolution called?
1284 × 2778 is also called 2778x1284, iPhone 12 and 13 Pro Max, 14 Plus. The 6.7-inch screen of iPhone 12 Pro Max, iPhone 13 Pro Max and iPhone 14 Plus.
How many megapixels is 1284×2778?
3,566,952 pixels, which is 3.57 megapixels. A 12-megapixel phone photo (4032 × 3024) has 3.4× as many.
How big can I print a 1284×2778 image?
At 300 DPI, the usual photo-print target, 4.3 × 9.3 inches (10.9 × 23.5 cm). At 150 DPI, fine for posters viewed from a distance, twice that: 8.6 × 18.5 inches.
Sources and how we checked
- YouTube Help: Recommended upload encoding settings (checked 2026-10-05)
- Apple Support: iPhone 12 Pro Max technical specifications (checked 2026-10-06)
- Apple Support: iPhone 13 Pro Max technical specifications (checked 2026-10-06)
- Apple Support: iPhone 14 Plus technical specifications (checked 2026-10-06)
Pixel counts, ratios, PPI, print sizes, data rates and platform fits are computed from the width and height. Device figures are the makers' own; bitrates are YouTube's recommendations. Reviewed October 6, 2026 by the Koldflux team.