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Resize an image to 480×640 pixels
To resize an image to 480×640 px, enter 480 × 640 px and pick crop to fill so the 3:4 frame is not stretched: a 4:3 phone photo loses 43.8% of its area (a centred 2268×3024 crop). The result has 0.31 megapixels; as a JPEG, a detailed outdoor photo is about 104 KB at the panel's default quality 85 (77.7 KB at quality 75).
480×640 px
JPG · no file-size limit · 480x640 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.
480×640 at a glance
| Pixel size | 480×640 px (307,200 pixels) |
|---|---|
| Aspect ratio | 3:4, portrait (width ÷ height = 0.75) |
| Megapixels | 0.31 MP |
| Decoded in memory | 1.17 MB RGBA · 900 KB RGB |
| Sharp on screen at | 480×640 CSS px at 1×, 240×320 at 2×, 160×213 at 3× density |
| Print size at 300 DPI | 1.6×2.13 in (4.1×5.4 cm) |
| Estimated JPEG (outdoor photo, quality 75) | 77.7 KB |
| JPEG without a KB limit (panel default, quality 85) | 104 KB |
What 480×640 means in pixels
480×640 is a portrait frame, 1.33 times as tall as it is wide, 307,200 pixels in total (0.31 megapixels). Its sides reduce to 3:4 (0.75 as a decimal), so any picture cropped to 3:4 scales to it without distortion.
A 12 MP phone photo has 40 times as many pixels, so reaching 480×640 is a clean reduction with no invented detail. Shown 1:1 it fills 480×640 CSS px on a standard screen and 240×320 CSS px on a 2× (Retina-class) screen; at 72 DPI the same pixels span 6.7×8.9 inches.
Decoded for editing it occupies 1.17 MB of memory (4 bytes per pixel); uncompressed 24-bit RGB would be 900 KB, which is why the downloadable JPEG, PNG or WebP is far smaller.
Getting 480×640 from a phone, camera or screenshot
Filling 480×640 from a vertical phone video frame (1080×1920, 9:16) loses the least (25%); a Full HD screenshot (1920×1080, 16:9) loses the most (57.8%). "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 480×640. From the phone photo PixelFit takes the 2268×3024 crop through 1134×1512 and 567×756 before the last step to 480×640, 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) | 2268×3024 (left and right cut) | 43.8% | 0.212× (reduced) | 480×360 |
| 24 MP camera photo (6000×4000, 3:2) | 3000×4000 (left and right cut) | 50% | 0.16× (reduced) | 480×320 |
| Full HD screenshot (1920×1080, 16:9) | 810×1080 (left and right cut) | 57.8% | 0.593× (reduced) | 480×270 |
| Vertical phone video frame (1080×1920, 9:16) | 1080×1440 (top and bottom cut) | 25% | 0.444× (reduced) | 360×640 |
How many KB is a 480×640 image?
Estimated from encodes of real sample images measured with sharp 0.35.5 / libvips 8.18.7 on 31 October 2026, interpolated to 307,200 pixels. The outdoor photo at 480×640 is about 77.7 KB at quality 75 and a scanned page about 50.4 KB; your file will differ with detail and noise.
| Image type | JPEG q60 | JPEG q75 | JPEG q90 | WebP q75 | PNG |
|---|---|---|---|---|---|
| Portrait photo | ≈ 31.2 KB | ≈ 40.3 KB | ≈ 66.4 KB | ≈ 24 KB | ≈ 423 KB |
| Outdoor photo | ≈ 58 KB | ≈ 77.7 KB | ≈ 127 KB | ≈ 68.6 KB | ≈ 598 KB |
| Scanned document | ≈ 38.5 KB | ≈ 50.4 KB | ≈ 83.6 KB | ≈ 35.9 KB | ≈ 411 KB |
| Flat graphic or logo | ≈ 13.1 KB | ≈ 16.2 KB | ≈ 24.1 KB | ≈ 9.6 KB | ≈ 28.5 KB |
Will a 480×640 photo fit an upload limit?
The highest JPEG or WebP quality that stays under each limit at exactly 480×640 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 20 KB | does not fit even at quality 30 | does not fit even at quality 30 | does not fit even at quality 30 |
| Under 30 KB | up to quality 54 | does not fit even at quality 30 | does not fit even at quality 30 |
| Under 50 KB | up to quality 82 | up to quality 48 | up to quality 45 |
| Under 100 KB | fits at quality 95 | up to quality 83 | up to quality 85 |
Is 480×640 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, 480×640 covers 1.6×2.13 in; at 150 DPI the same pixels stretch to 3.2×4.27 in with half the density.
| Resolution | Print size (inches) | Print size (cm) |
|---|---|---|
| 72 DPI | 6.67×8.89 in | 16.9×22.6 cm |
| 96 DPI | 5×6.67 in | 12.7×16.9 cm |
| 150 DPI | 3.2×4.27 in | 8.1×10.8 cm |
| 200 DPI | 2.4×3.2 in | 6.1×8.1 cm |
| 300 DPI | 1.6×2.13 in | 4.1×5.4 cm |
| 600 DPI | 0.8×1.07 in | 2×2.7 cm |
How 480×640 shows on common screens
Shown full screen without cropping, 480×640 is scaled by the factor below; bars fill the space where the shapes differ.
| Screen | Scale | Shown at | Bars |
|---|---|---|---|
| Laptop 1366×768 | 1.2× (enlarged) | 576×768 | 790 px left and right in total |
| Full HD 1920×1080 | 1.69× (enlarged) | 810×1080 | 1110 px left and right in total |
| QHD 2560×1440 | 2.25× (enlarged) | 1080×1440 | 1480 px left and right in total |
| 4K UHD 3840×2160 | 3.38× (enlarged) | 1620×2160 | 2220 px left and right in total |
| Phone, portrait 1080×1920 | 2.25× (enlarged) | 1080×1440 | 480 px top and bottom in total |
Other 3:4 sizes
These targets share the exact 3:4 ratio of 480×640, so resizing between them is a pure scale with nothing cropped.
| Size | Scale from 480×640 | Megapixels |
|---|---|---|
| 600×800 portrait | 1.25× | 0.48 MP |
| 768×1024 portrait | 1.6× | 0.79 MP |
| 300×400 portrait | 0.63× | 0.12 MP |
| 900×1200 portrait | 1.88× | 1.08 MP |
| 1080×1440 portrait | 2.25× | 1.56 MP |
| 1200×1600 portrait | 2.5× | 1.92 MP |
| 150×200 px photo | 0.31× | 0.03 MP |
| 30×40 mm photo | 0.74× | 0.17 MP |
How to resize a picture to 480×640
-
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 480 as the width and 640 as the height in pixels (the panel is already set to 480×640).
-
Choose how it fits
Choose crop to fill to keep the 3:4 frame without stretching (a phone photo loses 43.8%, left and right cut). Fit inside keeps the whole picture as a 480×360 file instead; Pad with colour puts that on a full 480×640 canvas.
-
Pick the format and download
Choose JPG or WebP; without a KB limit PixelFit saves JPG at quality 85, about 104 KB for a detailed outdoor photo. Add a KB limit if the upload has one or the file should be smaller, then download the 480x640 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 480x640?
Open the image in the PixelFit panel on this page, set 480 × 640 px, choose crop to fill so nothing is stretched and download. From a 12 MP phone photo that crops 43.8% (left and right cut) and scales the rest by 0.212×.
What aspect ratio is 480x640?
480x640 has an aspect ratio of 3:4: portrait, width ÷ height = 0.75. Sizes with the same ratio include 600×800 portrait, 768×1024 portrait and 300×400 portrait.
Is 480x640 good for print?
At 300 DPI 480x640 prints 1.6×2.13 in (4.1×5.4 cm). At 150 DPI it stretches to 3.2×4.27 in.
How big is a 480x640 JPEG file?
For a detailed outdoor photo about 77.7 KB at quality 75 (58 KB at 60, 127 KB at 90, 104 KB at the panel's default quality 85); a head-and-shoulders portrait is about 40.3 KB at quality 75, estimated from measured encodes. A flat graphic is smaller, a noisy low-light photo larger.
How does 480x640 look on a high-density screen?
On a 2× screen 480x640 is sharp when shown at 240×320 CSS px; shown larger, the browser enlarges it. A slot of 480×640 CSS px on a 2× screen needs a 960×1280 file.
Related
Same 3:4 ratio
Nearby sizes
- 40×50 mm photo 472:591 (about 4:5)
- 500×700 portrait 5:7
- 40×60 mm photo 472:709 (about 2:3)
- 420×540 px photo 7:9
- 35×45 mm passport photo 7:9
- 420×525 px photo 4:5