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Resize an image to 1280×1024 pixels (SXGA)
To resize an image to 1280×1024 px, enter 1280 × 1024 px and pick crop to fill so the 5:4 frame is not stretched: a 4:3 phone photo loses 6.3% of its area (a centred 3780×3024 crop). The result has 1.31 megapixels; as a JPEG, a detailed outdoor photo is about 443 KB at the panel's default quality 85 (336 KB at quality 75).
1280×1024 px
JPG · no file-size limit · 1280x1024 px · white background
No file-size limit is set: PixelFit saves at high quality and changes only the format and any pixel size you set.
Fit, background and padding crop to fill · white background
Saving presets is part of Pro.
The result appears here: the exact byte count, pixel size and quality, the size before and after, a preview and a download button.
The batch kit (one ZIP for up to 500 photos, several photos merged into one PDF) is part of Pro.
1280×1024 at a glance
| Pixel size | 1280×1024 px (1,310,720 pixels) |
|---|---|
| Aspect ratio | 5:4, landscape (width ÷ height = 1.25) |
| Megapixels | 1.31 MP |
| Decoded in memory | 5 MB RGBA · 3.75 MB RGB |
| Sharp on screen at | 1280×1024 CSS px at 1×, 640×512 at 2×, 427×341 at 3× density |
| Print size at 300 DPI | 4.27×3.41 in (10.8×8.7 cm) |
| Estimated JPEG (outdoor photo, quality 75) | 336 KB |
| JPEG without a KB limit (panel default, quality 85) | 443 KB |
What 1280×1024 means in pixels
1280×1024 is a landscape frame, 1.25 times as wide as it is tall, 1,310,720 pixels in total (1.31 megapixels). Its sides reduce to 5:4 (1.25 as a decimal), so any picture cropped to 5:4 scales to it without distortion.
A 12 MP phone photo has 9.3 times as many pixels, so reaching 1280×1024 is a clean reduction with no invented detail. Shown 1:1 it fills 1280×1024 CSS px on a standard screen and 640×512 CSS px on a 2× (Retina-class) screen; at 72 DPI the same pixels span 17.8×14.2 inches.
Decoded for editing it occupies 5 MB of memory (4 bytes per pixel); uncompressed 24-bit RGB would be 3.75 MB, which is why the downloadable JPEG, PNG or WebP is far smaller.
Where 1280×1024 is used
Each line comes from the reference listed under Sources, checked October 2026.
- SXGA display resolution.
Getting 1280×1024 from a phone, camera or screenshot
Filling 1280×1024 from a 12 MP phone photo (4032×3024, 4:3) loses the least (6.3%); a vertical phone video frame (1080×1920, 9:16) loses the most (55%). "Fit inside" keeps the whole picture instead and the file comes out at the size in the last column; "Pad with colour" adds bars to reach the full 1280×1024. From the phone photo PixelFit takes the 3780×3024 crop through 1890×1512 before the last step to 1280×1024, so each pass blends neighbouring pixels instead of skipping them.
| Starting image | Crop to fill keeps | Area lost | Scale | Fit inside gives |
|---|---|---|---|---|
| 12 MP phone photo (4032×3024, 4:3) | 3780×3024 (left and right cut) | 6.3% | 0.339× (reduced) | 1280×960 |
| 24 MP camera photo (6000×4000, 3:2) | 5000×4000 (left and right cut) | 16.7% | 0.256× (reduced) | 1280×853 |
| Full HD screenshot (1920×1080, 16:9) | 1350×1080 (left and right cut) | 29.7% | 0.948× (reduced) | 1280×720 |
| Vertical phone video frame (1080×1920, 9:16) | 1080×864 (top and bottom cut) | 55% | 1.185× (enlarged) | 576×1024 |
When 1280×1024 means enlarging
After the crop to fill, the kept region has to be enlarged 1.185× from a vertical phone video frame. Enlarging adds pixels but no detail, so start from the largest original you have, or choose a smaller target if the destination allows it: 1280×960 landscape or 1200×900 landscape would need less stretching.
How many KB is a 1280×1024 image?
Estimated from encodes of real sample images measured with sharp 0.35.5 / libvips 8.18.7 on 31 October 2026, interpolated to 1,310,720 pixels. The outdoor photo at 1280×1024 is about 336 KB at quality 75 and a scanned page about 171 KB; your file will differ with detail and noise.
| Image type | JPEG q60 | JPEG q75 | JPEG q90 | WebP q75 | PNG |
|---|---|---|---|---|---|
| Portrait photo | ≈ 92.3 KB | ≈ 124 KB | ≈ 222 KB | ≈ 62 KB | ≈ 1.62 MB |
| Outdoor photo | ≈ 253 KB | ≈ 336 KB | ≈ 537 KB | ≈ 296 KB | ≈ 2.5 MB |
| Scanned document | ≈ 129 KB | ≈ 171 KB | ≈ 294 KB | ≈ 105 KB | ≈ 1.48 MB |
| Flat graphic or logo | ≈ 32.8 KB | ≈ 40.2 KB | ≈ 59.1 KB | ≈ 21.9 KB | ≈ 64.5 KB |
Will a 1280×1024 photo fit an upload limit?
The highest JPEG or WebP quality that stays under each limit at exactly 1280×1024 px, from the same measurements. Set the KB limit next to the pixel size and PixelFit runs this search on your own photo.
| Limit | Portrait, JPEG | Outdoor photo, JPEG | Outdoor photo, WebP |
|---|---|---|---|
| Under 100 KB | up to quality 62 | does not fit even at quality 30 | does not fit even at quality 30 |
| Under 200 KB | up to quality 87 | up to quality 42 | up to quality 38 |
| Under 500 KB | fits at quality 95 | up to quality 87 | up to quality 89 |
Is 1280×1024 good for print?
Pixels carry no physical size until you pick a DPI. At 300 DPI, the resolution PixelFit uses for its print and ID photo sizes, 1280×1024 covers 4.27×3.41 in; at 150 DPI the same pixels stretch to 8.53×6.83 in with half the density.
| Resolution | Print size (inches) | Print size (cm) |
|---|---|---|
| 72 DPI | 17.78×14.22 in | 45.2×36.1 cm |
| 96 DPI | 13.33×10.67 in | 33.9×27.1 cm |
| 150 DPI | 8.53×6.83 in | 21.7×17.3 cm |
| 200 DPI | 6.4×5.12 in | 16.3×13 cm |
| 300 DPI | 4.27×3.41 in | 10.8×8.7 cm |
| 600 DPI | 2.13×1.71 in | 5.4×4.3 cm |
How 1280×1024 shows on common screens
Shown full screen without cropping, 1280×1024 is scaled by the factor below; bars fill the space where the shapes differ.
| Screen | Scale | Shown at | Bars |
|---|---|---|---|
| Laptop 1366×768 | 0.75× (reduced) | 960×768 | 406 px left and right in total |
| Full HD 1920×1080 | 1.05× (enlarged) | 1350×1080 | 570 px left and right in total |
| QHD 2560×1440 | 1.41× (enlarged) | 1800×1440 | 760 px left and right in total |
| 4K UHD 3840×2160 | 2.11× (enlarged) | 2700×2160 | 1140 px left and right in total |
| Phone, portrait 1080×1920 | 0.84× (reduced) | 1080×864 | 1056 px top and bottom in total |
Sizes close to 1280×1024
No other target in the PixelFit list has exactly 5:4. The nearest sizes (by pixel count and shape) and their crop from a 1280×1024 image:
- 1280×960 landscape: 4:3, 6.3% cropped (top and bottom cut), then 1× scale.
- 1200×900 landscape: 4:3, 6.3% cropped (top and bottom cut), then 0.938× scale.
- 1500×1000 landscape: 3:2, 16.7% cropped (top and bottom cut), then 1.172× scale.
- 1440×900: 8:5, 21.9% cropped (top and bottom cut), then 1.125× scale.
How to resize a picture to 1280×1024
-
Add the picture
Drop, paste or pick the photo in the PixelFit panel at the top of this page; it is decoded in your browser and never uploaded.
-
Set the size
Enter 1280 as the width and 1024 as the height in pixels (the panel is already set to 1280×1024).
-
Choose how it fits
Choose crop to fill to keep the 5:4 frame without stretching (a phone photo loses 6.3%, left and right cut). Fit inside keeps the whole picture as a 1280×960 file instead; Pad with colour puts that on a full 1280×1024 canvas.
-
Pick the format and download
Choose JPG or WebP; without a KB limit PixelFit saves JPG at quality 85, about 443 KB for a detailed outdoor photo. Add a KB limit if the upload has one or the file should be smaller, then download the 1280x1024 file.
Sources
- Display resolution standards, Wikipedia, checked 31 October 2026: en.wikipedia.org/wiki/Display_resolution_standards
- Measured by PixelFit with sharp 0.35.5 / libvips 8.18.7 on 31 October 2026, from the sample photo Hartz Lake at Hartz Mountain.jpg by JustinH (Wikimedia Commons user) (CC0 1.0): commons.wikimedia.org/wiki/File:Hartz_Lake_at_Hartz_Mount…
Frequently asked questions
How do I resize an image to 1280x1024?
Open the image in the PixelFit panel on this page, set 1280 × 1024 px, choose crop to fill so nothing is stretched and download. From a 12 MP phone photo that crops 6.3% (left and right cut) and scales the rest by 0.339×.
What aspect ratio is 1280x1024?
1280x1024 has an aspect ratio of 5:4: landscape, width ÷ height = 1.25. No other common target has exactly this ratio; the closest familiar shape is 5:4.
Is 1280x1024 good for print?
At 300 DPI 1280x1024 prints 4.27×3.41 in (10.8×8.7 cm), enough for a print of that size at full density. At 150 DPI it stretches to 8.53×6.83 in.
How big is a 1280x1024 JPEG file?
For a detailed outdoor photo about 336 KB at quality 75 (253 KB at 60, 537 KB at 90, 443 KB at the panel's default quality 85); a head-and-shoulders portrait is about 124 KB at quality 75, estimated from measured encodes. A flat graphic is smaller, a noisy low-light photo larger.
How does 1280x1024 look on a high-density screen?
On a 2× screen 1280x1024 is sharp when shown at 640×512 CSS px; shown larger, the browser enlarges it. A slot of 1280×1024 CSS px on a 2× screen needs a 2560×2048 file.
Related
Nearby sizes
- 1280×960 landscape 4:3
- 1200×900 landscape 4:3
- 1500×1000 landscape 3:2
- 1440×900 8:5
- 1600×1200 (UXGA) 4:3
- 1200×1200 square 1:1