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Resize an image to 640×480 pixels (VGA)
To resize an image to 640×480 px, enter 640 × 480 px and pick crop to fill so the 4:3 frame is not stretched: a 4:3 phone photo already has this shape and is only scaled by 0.159×. 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).
640×480 px
JPG · no file-size limit · 640x480 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.
640×480 at a glance
| Pixel size | 640×480 px (307,200 pixels) |
|---|---|
| Aspect ratio | 4:3, landscape (width ÷ height = 1.3333) |
| Megapixels | 0.31 MP |
| Decoded in memory | 1.17 MB RGBA · 900 KB RGB |
| Sharp on screen at | 640×480 CSS px at 1×, 320×240 at 2×, 213×160 at 3× density |
| Print size at 300 DPI | 2.13×1.6 in (5.4×4.1 cm) |
| Estimated JPEG (outdoor photo, quality 75) | 77.7 KB |
| JPEG without a KB limit (panel default, quality 85) | 104 KB |
What 640×480 means in pixels
640×480 is a landscape frame, 1.33 times as wide as it is tall, 307,200 pixels in total (0.31 megapixels). Its sides reduce to 4:3 (1.3333 as a decimal), so any picture cropped to 4:3 scales to it without distortion.
A 12 MP phone photo has 40 times as many pixels, so reaching 640×480 is a clean reduction with no invented detail. Shown 1:1 it fills 640×480 CSS px on a standard screen and 320×240 CSS px on a 2× (Retina-class) screen; at 72 DPI the same pixels span 8.9×6.7 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.
Where 640×480 is used
Each line comes from the reference listed under Sources, checked October 2026.
- VGA display resolution.
Getting 640×480 from a phone, camera or screenshot
Filling 640×480 from a 12 MP phone photo (4032×3024, 4:3) loses nothing; a vertical phone video frame (1080×1920, 9:16) 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 640×480. From the phone photo PixelFit takes the 4032×3024 crop through 2016×1512 and 1008×756 before the last step to 640×480, 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) | 4032×3024 (nothing cut) | 0% | 0.159× (reduced) | 640×480 |
| 24 MP camera photo (6000×4000, 3:2) | 5333×4000 (left and right cut) | 11.1% | 0.12× (reduced) | 640×427 |
| Full HD screenshot (1920×1080, 16:9) | 1440×1080 (left and right cut) | 25% | 0.444× (reduced) | 640×360 |
| Vertical phone video frame (1080×1920, 9:16) | 1080×810 (top and bottom cut) | 57.8% | 0.593× (reduced) | 270×480 |
How many KB is a 640×480 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 640×480 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 640×480 photo fit an upload limit?
The highest JPEG or WebP quality that stays under each limit at exactly 640×480 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 640×480 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, 640×480 covers 2.13×1.6 in; at 150 DPI the same pixels stretch to 4.27×3.2 in with half the density.
| Resolution | Print size (inches) | Print size (cm) |
|---|---|---|
| 72 DPI | 8.89×6.67 in | 22.6×16.9 cm |
| 96 DPI | 6.67×5 in | 16.9×12.7 cm |
| 150 DPI | 4.27×3.2 in | 10.8×8.1 cm |
| 200 DPI | 3.2×2.4 in | 8.1×6.1 cm |
| 300 DPI | 2.13×1.6 in | 5.4×4.1 cm |
| 600 DPI | 1.07×0.8 in | 2.7×2 cm |
How 640×480 shows on common screens
Shown full screen without cropping, 640×480 is scaled by the factor below; bars fill the space where the shapes differ.
| Screen | Scale | Shown at | Bars |
|---|---|---|---|
| Laptop 1366×768 | 1.6× (enlarged) | 1024×768 | 342 px left and right in total |
| Full HD 1920×1080 | 2.25× (enlarged) | 1440×1080 | 480 px left and right in total |
| QHD 2560×1440 | 3× (enlarged) | 1920×1440 | 640 px left and right in total |
| 4K UHD 3840×2160 | 4.5× (enlarged) | 2880×2160 | 960 px left and right in total |
| Phone, portrait 1080×1920 | 1.69× (enlarged) | 1080×810 | 1110 px top and bottom in total |
Other 4:3 sizes
These targets share the exact 4:3 ratio of 640×480, so resizing between them is a pure scale with nothing cropped.
| Size | Scale from 640×480 | Megapixels |
|---|---|---|
| 800×600 (SVGA) | 1.25× | 0.48 MP |
| 1000×750 landscape | 1.56× | 0.75 MP |
| 1024×768 (XGA) | 1.6× | 0.79 MP |
| 400×300 landscape | 0.63× | 0.12 MP |
| 1200×900 landscape | 1.88× | 1.08 MP |
| 1280×960 landscape | 2× | 1.23 MP |
| 320×240 (QVGA) | 0.5× | 0.0768 MP |
| 1600×1200 (UXGA) | 2.5× | 1.92 MP |
How to resize a picture to 640×480
-
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 640 as the width and 480 as the height in pixels (the panel is already set to 640×480).
-
Choose how it fits
Choose crop to fill: a 4:3 phone photo already matches, so nothing is cut.
-
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 640x480 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 640x480?
Open the image in the PixelFit panel on this page, set 640 × 480 px, choose crop to fill so nothing is stretched and download. From a 12 MP phone photo that only scales the picture and scales the rest by 0.159×.
What aspect ratio is 640x480?
640x480 has an aspect ratio of 4:3: landscape, width ÷ height = 1.3333. Sizes with the same ratio include 800×600 (SVGA), 1000×750 landscape and 1024×768 (XGA).
Is 640x480 good for print?
At 300 DPI 640x480 prints 2.13×1.6 in (5.4×4.1 cm). At 150 DPI it stretches to 4.27×3.2 in.
How big is a 640x480 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 640x480 look on a high-density screen?
On a 2× screen 640x480 is sharp when shown at 320×240 CSS px; shown larger, the browser enlarges it. A slot of 640×480 CSS px on a 2× screen needs a 1280×960 file.
Related
Same 4:3 ratio
Nearby sizes
- 600×400 landscape 3:2
- 45×45 mm photo 1:1
- 800×480 (WVGA) 5:3
- 512×512 PWA icon 1:1
- 2×2 inch photo 1:1
- 600×600 square 1:1