Resolution reference
720 × 1280 resolution (Vertical 720p)
Short answer
720 × 1280 (vertical 720p, 9:16 HD) is a 9:16 portrait resolution with 921,600 pixels (0.92 megapixels). Vertical HD - a common export when file size matters more than sharpness.
Key takeaways
- 720 × 1280 is 9:16, portrait, 921,600 pixels (0.92 MP).
- Vertical HD - a common export when file size matters more than sharpness.
- For video, YouTube's 720p tier applies: 5 Mbps at 24-30 fps, about 38 MB a minute.
- Printed at 300 DPI it is 2.4 × 4.3 inches.
720 × 1280 specifications
| Width × height | 720 × 1,280 pixels |
|---|---|
| Also called | 720x1280, vertical 720p, 9:16 HD |
| Aspect ratio | 9:16, decimal 0.5625 |
| Orientation | portrait |
| Total pixels | 921,600 (0.92 megapixels) |
| Compared with 1080p | 0.44× the pixels of 1920 × 1080 |
| Diagonal | 1,469 pixels |
| Rotated | 1280 × 720 (see that page) |
| Encoder safe | Yes: both sides are even, as H.264 and HEVC with 4:2:0 color require |
720 × 1280 compared with common resolutions
| Resolution | Pixels | 720 × 1280 has |
|---|---|---|
| 720p (1280 × 720) | 921,600 | 1.00× as many |
| 1080p (1920 × 1080) | 2,073,600 | 44% as many |
| 1440p (2560 × 1440) | 3,686,400 | 25% as many |
| 4K UHD (3840 × 2160) | 8,294,400 | 11% as many |
720 × 1280 vs 854 × 480 and 720 × 1280 vs 1366 × 768
720 × 1280 has 125% more pixels than 480p (854 × 480). On a 6.7-inch phone that is 219 vs 146 pixels per inch, so text and fine detail look sharper at 720 × 1280. A game or encoder has to process 2.25× as many pixels per frame, which costs frame rate on the same graphics card and, at equal quality, file size.
1366 × 768 (1366 × 768) has 14% more pixels than 720 × 1280. On a 6.7-inch phone that is 219 vs 234 pixels per inch, so text and fine detail look softer at 720 × 1280. A game or encoder processes only 88% as many pixels per frame, which helps frame rates and keeps files smaller.
| 720 × 1280 | 480p (854 × 480) | 1366 × 768 (1366 × 768) | |
|---|---|---|---|
| Pixels | 921,600 | 409,920 | 1,049,088 |
| Aspect ratio | 9:16 | 427:240 | 683:384 |
| YouTube bitrate, 24-30 fps | 5 Mbps | 2.5 Mbps | 5 Mbps |
| Desktop space (vs 1080p) | 44% | 20% | 51% |
Where 720 × 1280 is used
Vertical 720p comes from phones and apps exporting a lighter version of the 9:16 frame. It carries 44% of the pixels of 1080 × 1920, so files and uploads are about half the size at the same quality setting.
- A smaller vertical export when file size or upload time matters more than sharpness.
- Screen recordings and exports from older phones and budget apps.
- Above the TikTok API's 360-pixel minimum, but visibly softer than 1080 × 1920 on modern phones.
Pixel density (PPI) by screen size
Pixel density is the diagonal in pixels (1,469) 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).
| Screen diagonal | PPI | Pixels blend at about |
|---|---|---|
| 6.1 inches | 241 | 14 in (36 cm) |
| 6.3 inches | 233 | 15 in (37 cm) |
| 6.7 inches | 219 | 16 in (40 cm) |
| 6.9 inches | 213 | 16 in (41 cm) |
Print sizes for a 720 × 1280 image
| Print resolution | Inches | Centimeters | Good for |
|---|---|---|---|
| 300 DPI | 2.4 × 4.3 | 6.1 × 10.8 | Photo prints, magazines |
| 240 DPI | 3.0 × 5.3 | 7.6 × 13.5 | Inkjet photo prints |
| 150 DPI | 4.8 × 8.5 | 12.2 × 21.7 | Posters seen from a meter or more |
| 72 DPI | 10.0 × 17.8 | 25.4 × 45.2 | Screen only; too coarse for print |
Free tool:DPI and print size calculator
Video at 720 × 1280: bitrate and file size
| Frame rate | Bitrate | Per minute | Per 10 minutes |
|---|---|---|---|
| 24-30 fps | 5 Mbps | about 38 MB | about 380 MB |
| 48-60 fps | 7.5 Mbps | about 56 MB | about 560 MB |
Uncompressed, one 720 × 1280 frame is 2.8 MB as 8-bit RGB, or 1.4 MB in the 8-bit 4:2:0 format video codecs work in. At 30 fps that is 332 Mbps of raw video, which is why every delivery format compresses it.
Posting 720 × 1280 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 | Fills exactly | No crop needed |
| 16:9 (YouTube), 1920 × 1080 | 608 × 1080 picture, 68% of the frame is bars | Keeps 32% of the picture (crops the height) |
| 4:5 (feed portrait), 1080 × 1350 | 760 × 1350 picture, 30% of the frame is bars | Keeps 70% of the picture (crops the height) |
| 1:1 (square), 1080 × 1080 | 608 × 1080 picture, 44% of the frame is bars | Keeps 56% 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 720 × 1280
- In an editor, set the sequence or export frame size to 720 × 1280; 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=720:1280 -c:a copy out.mp4 - With FFmpeg, keep the whole picture and add bars:
ffmpeg -i in.mp4 -vf "scale=720:1280:force_original_aspect_ratio=decrease,pad=720:1280:(ow-iw)/2:(oh-ih)/2" -c:a copy out.mp4 - Upscaling a smaller source to 720 × 1280 makes the file bigger without adding detail; scale down from a larger master when you can.
| Scale | Size | Pixels |
|---|---|---|
| 25% | 180 × 320 | 57,600 |
| 50% | 360 × 640 | 230,400 |
| 75% | 540 × 960 | 518,400 |
| 150% | 1080 × 1920 | 2,073,600 |
| 200% | 1440 × 2560 | 3,686,400 |
Same 9:16 shape:1080 × 19202160 × 38401440 × 2560
Check a file against 720 × 1280
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 720×1280 HD?
Yes. 720×1280 is HD (720p) turned on its side, the lowest resolution still widely labeled HD; 1080p has 2.25× as many pixels.
What aspect ratio is 720×1280?
9:16, a width-to-height ratio of 0.5625.
What bitrate should a 720×1280 video use for YouTube?
YouTube recommends 5 Mbps at 24-30 fps and 7.5 Mbps at 48-60 fps for its 720p tier (SDR). That is about 38 MB per minute at standard frame rates, before audio.
How does 720×1280 compare with 1080p?
It has 44% of the pixels of 1920×1080 (921,600 vs 2,073,600). Encoding time and file size at equal quality scale roughly with pixel count.
What is 720×1280 resolution called?
720 × 1280 is also called vertical 720p, 9:16 HD. Vertical HD - a common export when file size matters more than sharpness.
How many megapixels is 720×1280?
921,600 pixels, which is 0.92 megapixels. A 12-megapixel phone photo (4032 × 3024) has 13.2× as many.
How big can I print a 720×1280 image?
At 300 DPI, the usual photo-print target, 2.4 × 4.3 inches (6.1 × 10.8 cm). At 150 DPI, fine for posters viewed from a distance, twice that: 4.8 × 8.5 inches.
Sources and how we checked
- YouTube Help: Recommended upload encoding settings (checked 2026-10-05)
- TikTok for Developers: Content Posting API media transfer guide (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.