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Resize an image to 1584×396 pixels
To resize an image to 1584×396 px, enter 1584 × 396 px and pick crop to fill so the 4:1 frame is not stretched: a 4:3 phone photo loses 66.7% of its area (a centred 4032×1008 crop). The result has 0.63 megapixels; as a JPEG, a detailed outdoor photo is about 210 KB at the panel's default quality 85 (158 KB at quality 75).
1584×396 px
JPG · no file-size limit · 1584x396 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.
1584×396 at a glance
| Pixel size | 1584×396 px (627,264 pixels) |
|---|---|
| Aspect ratio | 4:1, landscape (width ÷ height = 4) |
| Megapixels | 0.63 MP |
| Decoded in memory | 2.39 MB RGBA · 1.79 MB RGB |
| Sharp on screen at | 1584×396 CSS px at 1×, 792×198 at 2×, 528×132 at 3× density |
| Print size at 300 DPI | 5.28×1.32 in (13.4×3.4 cm) |
| Estimated JPEG (outdoor photo, quality 75) | 158 KB |
| JPEG without a KB limit (panel default, quality 85) | 210 KB |
What 1584×396 means in pixels
1584×396 is a landscape frame, 4 times as wide as it is tall, 627,264 pixels in total (0.63 megapixels). Its sides reduce to 4:1 (4 as a decimal), so any picture cropped to 4:1 scales to it without distortion.
A 12 MP phone photo has 19 times as many pixels, so reaching 1584×396 is a clean reduction with no invented detail. Shown 1:1 it fills 1584×396 CSS px on a standard screen and 792×198 CSS px on a 2× (Retina-class) screen; at 72 DPI the same pixels span 22×5.5 inches.
Decoded for editing it occupies 2.39 MB of memory (4 bytes per pixel); uncompressed 24-bit RGB would be 1.79 MB, which is why the downloadable JPEG, PNG or WebP is far smaller.
Getting 1584×396 from a phone, camera or screenshot
Filling 1584×396 from a Full HD screenshot (1920×1080, 16:9) loses the least (55.6%); a vertical phone video frame (1080×1920, 9:16) loses the most (85.9%). "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 1584×396. From the phone photo PixelFit takes the 4032×1008 crop through 2016×504 before the last step to 1584×396, 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) | 4032×1008 (top and bottom cut) | 66.7% | 0.393× (reduced) | 528×396 |
| 24 MP camera photo (6000×4000, 3:2) | 6000×1500 (top and bottom cut) | 62.5% | 0.264× (reduced) | 594×396 |
| Full HD screenshot (1920×1080, 16:9) | 1920×480 (top and bottom cut) | 55.6% | 0.825× (reduced) | 704×396 |
| Vertical phone video frame (1080×1920, 9:16) | 1080×270 (top and bottom cut) | 85.9% | 1.467× (enlarged) | 223×396 |
When 1584×396 means enlarging
After the crop to fill, the kept region has to be enlarged 1.467× 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: 970×250 banner or 1080×566 landscape would need less stretching.
How many KB is a 1584×396 image?
Estimated from encodes of real sample images measured with sharp 0.35.5 / libvips 8.18.7 on 31 October 2026, interpolated to 627,264 pixels. The outdoor photo at 1584×396 is about 158 KB at quality 75 and a scanned page about 94.6 KB; your file will differ with detail and noise.
| Image type | JPEG q60 | JPEG q75 | JPEG q90 | WebP q75 | PNG |
|---|---|---|---|---|---|
| Portrait photo | ≈ 53.3 KB | ≈ 69.5 KB | ≈ 118 KB | ≈ 37.9 KB | ≈ 824 KB |
| Outdoor photo | ≈ 119 KB | ≈ 158 KB | ≈ 256 KB | ≈ 140 KB | ≈ 1.2 MB |
| Scanned document | ≈ 71.7 KB | ≈ 94.6 KB | ≈ 158 KB | ≈ 62.4 KB | ≈ 783 KB |
| Flat graphic or logo | ≈ 20.3 KB | ≈ 25.1 KB | ≈ 37.1 KB | ≈ 14.4 KB | ≈ 42.8 KB |
Will a 1584×396 photo fit an upload limit?
The highest JPEG or WebP quality that stays under each limit at exactly 1584×396 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 50 KB | up to quality 53 | does not fit even at quality 30 | does not fit even at quality 30 |
| Under 100 KB | up to quality 85 | up to quality 47 | up to quality 42 |
| Under 200 KB | fits at quality 95 | up to quality 82 | up to quality 85 |
Is 1584×396 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, 1584×396 covers 5.28×1.32 in; at 150 DPI the same pixels stretch to 10.56×2.64 in with half the density.
| Resolution | Print size (inches) | Print size (cm) |
|---|---|---|
| 72 DPI | 22×5.5 in | 55.9×14 cm |
| 96 DPI | 16.5×4.13 in | 41.9×10.5 cm |
| 150 DPI | 10.56×2.64 in | 26.8×6.7 cm |
| 200 DPI | 7.92×1.98 in | 20.1×5 cm |
| 300 DPI | 5.28×1.32 in | 13.4×3.4 cm |
| 600 DPI | 2.64×0.66 in | 6.7×1.7 cm |
How 1584×396 shows on common screens
Shown full screen without cropping, 1584×396 is scaled by the factor below; bars fill the space where the shapes differ.
| Screen | Scale | Shown at | Bars |
|---|---|---|---|
| Laptop 1366×768 | 0.86× (reduced) | 1366×342 | 426 px top and bottom in total |
| Full HD 1920×1080 | 1.21× (enlarged) | 1920×480 | 600 px top and bottom in total |
| QHD 2560×1440 | 1.62× (enlarged) | 2560×640 | 800 px top and bottom in total |
| 4K UHD 3840×2160 | 2.42× (enlarged) | 3840×960 | 1200 px top and bottom in total |
| Phone, portrait 1080×1920 | 0.68× (reduced) | 1080×270 | 1650 px top and bottom in total |
Sizes close to 1584×396
No other target in the PixelFit list has exactly 4:1. The nearest sizes (by pixel count and shape) and their crop from a 1584×396 image:
- 1500×500 landscape: 3:1, 25% cropped (left and right cut), then 1.263× scale.
- 970×250 banner: 97:25 (3.88:1), 3% cropped (left and right cut), then 0.632× scale.
- 1080×566 landscape: 540:283 (about 1.91:1), 52.3% cropped (left and right cut), then 1.429× scale.
- 1000×500 landscape: 2:1, 50% cropped (left and right cut), then 1.263× scale.
How to resize a picture to 1584×396
-
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.
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Set the size
Enter 1584 as the width and 396 as the height in pixels (the panel is already set to 1584×396).
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Choose how it fits
Choose crop to fill to keep the 4:1 frame without stretching (a phone photo loses 66.7%, top and bottom cut). Fit inside keeps the whole picture as a 528×396 file instead; Pad with colour puts that on a full 1584×396 canvas.
-
Pick the format and download
Choose JPG or WebP; without a KB limit PixelFit saves JPG at quality 85, about 210 KB for a detailed outdoor photo. Add a KB limit if the upload has one or the file should be smaller, then download the 1584x396 file.
Sources
- 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 1584x396?
Open the image in the PixelFit panel on this page, set 1584 × 396 px, choose crop to fill so nothing is stretched and download. From a 12 MP phone photo that crops 66.7% (top and bottom cut) and scales the rest by 0.393×.
What aspect ratio is 1584x396?
1584x396 has an aspect ratio of 4:1: landscape, width ÷ height = 4. No other common target has exactly this ratio: the frame is 4 times as wide as it is tall, and the closest familiar shape is 3:1, 33.3% away, so converting between them means a visible crop.
Is 1584x396 good for print?
At 300 DPI 1584x396 prints 5.28×1.32 in (13.4×3.4 cm), enough for a print of that size at full density. At 150 DPI it stretches to 10.56×2.64 in.
How big is a 1584x396 JPEG file?
For a detailed outdoor photo about 158 KB at quality 75 (119 KB at 60, 256 KB at 90, 210 KB at the panel's default quality 85); a head-and-shoulders portrait is about 69.5 KB at quality 75, estimated from measured encodes. A flat graphic is smaller, a noisy low-light photo larger.
How does 1584x396 look on a high-density screen?
On a 2× screen 1584x396 is sharp when shown at 792×198 CSS px; shown larger, the browser enlarges it. A slot of 1584×396 CSS px on a 2× screen needs a 3168×792 file.
Related
Nearby sizes
- 1500×500 landscape 3:1
- 970×250 banner 97:25 (3.88:1)
- 1080×566 landscape 540:283 (about 1.91:1)
- 1000×500 landscape 2:1
- 1200×630 link preview image 40:21 (about 1.91:1)
- 960×540 (qHD) 16:9