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Resize an image to 320×240 pixels (QVGA)
To resize an image to 320×240 px, enter 320 × 240 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 0.079×. The result has 0.0768 megapixels; as a JPEG, a detailed outdoor photo is about 26.5 KB at the panel's default quality 85 (19.9 KB at quality 75).
320×240 px
JPG · no file-size limit · 320x240 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.
320×240 at a glance
| Pixel size | 320×240 px (76,800 pixels) |
|---|---|
| Aspect ratio | 4:3, landscape (width ÷ height = 1.3333) |
| Megapixels | 0.0768 MP |
| Decoded in memory | 300 KB RGBA · 225 KB RGB |
| Sharp on screen at | 320×240 CSS px at 1×, 160×120 at 2×, 107×80 at 3× density |
| Print size at 300 DPI | 1.07×0.8 in (2.7×2 cm) |
| Estimated JPEG (outdoor photo, quality 75) | 19.9 KB |
| JPEG without a KB limit (panel default, quality 85) | 26.5 KB |
What 320×240 means in pixels
320×240 is a landscape frame, 1.33 times as wide as it is tall, 76,800 pixels in total (0.0768 megapixels). Its sides reduce to 4:3 (1.3333 as a decimal), so any picture cropped to 4:3 scales to it without distortion.
It is thumbnail scale: a 12 MP phone photo carries 159 times more pixels, so the resize discards most of them and the stepped downscale matters for sharpness. Shown 1:1 it fills 320×240 CSS px on a standard screen and 160×120 CSS px on a 2× (Retina-class) screen; at 72 DPI the same pixels span 4.4×3.3 inches.
Decoded for editing it occupies 300 KB of memory (4 bytes per pixel); uncompressed 24-bit RGB would be 225 KB, which is why the downloadable JPEG, PNG or WebP is far smaller.
Where 320×240 is used
Each line comes from the reference listed under Sources, checked October 2026.
- QVGA display resolution.
Getting 320×240 from a phone, camera or screenshot
Filling 320×240 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 320×240. From the phone photo PixelFit takes the 4032×3024 crop through 2016×1512, 1008×756 and 504×378 before the last step to 320×240, 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% | 0.079× (reduced) | 320×240 |
| 24 MP camera photo (6000×4000, 3:2) | 5333×4000 (left and right cut) | 11.1% | 0.06× (reduced) | 320×213 |
| Full HD screenshot (1920×1080, 16:9) | 1440×1080 (left and right cut) | 25% | 0.222× (reduced) | 320×180 |
| Vertical phone video frame (1080×1920, 9:16) | 1080×810 (top and bottom cut) | 57.8% | 0.296× (reduced) | 135×240 |
How many KB is a 320×240 image?
Estimated from encodes of real sample images measured with sharp 0.35.5 / libvips 8.18.7 on 31 October 2026, interpolated to 76,800 pixels. The outdoor photo at 320×240 is about 19.9 KB at quality 75 and a scanned page about 13.4 KB; your file will differ with detail and noise.
| Image type | JPEG q60 | JPEG q75 | JPEG q90 | WebP q75 | PNG |
|---|---|---|---|---|---|
| Portrait photo | ≈ 11.5 KB | ≈ 14.6 KB | ≈ 23.2 KB | ≈ 10.3 KB | ≈ 119 KB |
| Outdoor photo | ≈ 14.9 KB | ≈ 19.9 KB | ≈ 32.4 KB | ≈ 17.2 KB | ≈ 149 KB |
| Scanned document | ≈ 9.9 KB | ≈ 13.4 KB | ≈ 22.5 KB | ≈ 10.2 KB | ≈ 113 KB |
| Flat graphic or logo | ≈ 5.5 KB | ≈ 7 KB | ≈ 10.5 KB | ≈ 4.4 KB | ≈ 12.3 KB |
Will a 320×240 photo fit an upload limit?
The highest JPEG or WebP quality that stays under each limit at exactly 320×240 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 10 KB | up to quality 46 | up to quality 33 | up to quality 32 |
| Under 20 KB | up to quality 85 | up to quality 74 | up to quality 78 |
| Under 30 KB | up to quality 93 | up to quality 87 | up to quality 89 |
Is 320×240 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, 320×240 covers 1.07×0.8 in; at 150 DPI the same pixels stretch to 2.13×1.6 in with half the density.
| Resolution | Print size (inches) | Print size (cm) |
|---|---|---|
| 72 DPI | 4.44×3.33 in | 11.3×8.5 cm |
| 96 DPI | 3.33×2.5 in | 8.5×6.4 cm |
| 150 DPI | 2.13×1.6 in | 5.4×4.1 cm |
| 200 DPI | 1.6×1.2 in | 4.1×3 cm |
| 300 DPI | 1.07×0.8 in | 2.7×2 cm |
| 600 DPI | 0.53×0.4 in | 1.4×1 cm |
How 320×240 shows on common screens
Shown full screen without cropping, 320×240 is scaled by the factor below; bars fill the space where the shapes differ.
| Screen | Scale | Shown at | Bars |
|---|---|---|---|
| Laptop 1366×768 | 3.2× (enlarged) | 1024×768 | 342 px left and right in total |
| Full HD 1920×1080 | 4.5× (enlarged) | 1440×1080 | 480 px left and right in total |
| QHD 2560×1440 | 6× (enlarged) | 1920×1440 | 640 px left and right in total |
| 4K UHD 3840×2160 | 9× (enlarged) | 2880×2160 | 960 px left and right in total |
| Phone, portrait 1080×1920 | 3.38× (enlarged) | 1080×810 | 1110 px top and bottom in total |
Other 4:3 sizes
These targets share the exact 4:3 ratio of 320×240, so resizing between them is a pure scale with nothing cropped.
| Size | Scale from 320×240 | Megapixels |
|---|---|---|
| 400×300 landscape | 1.25× | 0.12 MP |
| 640×480 (VGA) | 2× | 0.31 MP |
| 800×600 (SVGA) | 2.5× | 0.48 MP |
| 1000×750 landscape | 3.13× | 0.75 MP |
| 1024×768 (XGA) | 3.2× | 0.79 MP |
| 1200×900 landscape | 3.75× | 1.08 MP |
| 1280×960 landscape | 4× | 1.23 MP |
| 1600×1200 (UXGA) | 5× | 1.92 MP |
How to resize a picture to 320×240
-
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 320 as the width and 240 as the height in pixels (the panel is already set to 320×240).
-
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 26.5 KB for a detailed outdoor photo. Add a KB limit if the upload has one or the file should be smaller, then download the 320x240 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 320x240?
Open the image in the PixelFit panel on this page, set 320 × 240 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 0.079×.
What aspect ratio is 320x240?
320x240 has an aspect ratio of 4:3: landscape, width ÷ height = 1.3333. Sizes with the same ratio include 400×300 landscape, 640×480 (VGA) and 800×600 (SVGA).
Is 320x240 good for print?
At 300 DPI 320x240 prints 1.07×0.8 in (2.7×2 cm), smaller than a passport photo, so it is a screen size rather than a print size. At 150 DPI it stretches to 2.13×1.6 in.
How big is a 320x240 JPEG file?
For a detailed outdoor photo about 19.9 KB at quality 75 (14.9 KB at 60, 32.4 KB at 90, 26.5 KB at the panel's default quality 85); a head-and-shoulders portrait is about 14.6 KB at quality 75, estimated from measured encodes. A flat graphic is smaller, a noisy low-light photo larger.
How does 320x240 look on a high-density screen?
On a 2× screen 320x240 is sharp when shown at 160×120 CSS px; shown larger, the browser enlarges it. A slot of 320×240 CSS px on a 2× screen needs a 640×480 file.
Related
Same 4:3 ratio
Nearby sizes
- 300×250 banner 6:5
- 336×280 banner 6:5
- 300×200 landscape 3:2
- 256×256 icon 1:1
- 300×300 square 1:1
- 250×250 square 1:1