Updated · how we check
Resize an image to 320×50 pixels
To resize an image to 320×50 px, enter 320 × 50 px and pick crop to fill so the 32:5 frame is not stretched: a 4:3 phone photo loses 79.2% of its area (a centred 4032×630 crop). The result has 0.016 megapixels; as a JPEG, a detailed outdoor photo is about 6.2 KB at the panel's default quality 85 (4.8 KB at quality 75).
320×50 px
JPG · no file-size limit · 320x50 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.
320×50 at a glance
| Pixel size | 320×50 px (16,000 pixels) |
|---|---|
| Aspect ratio | 32:5, landscape (width ÷ height = 6.4) |
| Megapixels | 0.016 MP |
| Decoded in memory | 62.5 KB RGBA · 46.9 KB RGB |
| Sharp on screen at | 320×50 CSS px at 1×, 160×25 at 2×, 107×17 at 3× density |
| Print size at 300 DPI | 1.07×0.17 in (2.7×0.4 cm) |
| Estimated JPEG (outdoor photo, quality 75) | 4.8 KB |
| JPEG without a KB limit (panel default, quality 85) | 6.2 KB |
What 320×50 means in pixels
320×50 is a landscape frame, 6.4 times as wide as it is tall, 16,000 pixels in total (0.016 megapixels). Its sides reduce to 32:5 (6.4 as a decimal), so any picture cropped to 32:5 scales to it without distortion.
It is thumbnail scale: a 12 MP phone photo carries 762 times more pixels, so the resize discards most of them and the stepped downscale matters for sharpness. Shown 1:1 it fills 320×50 CSS px on a standard screen and 160×25 CSS px on a 2× (Retina-class) screen; at 72 DPI the same pixels span 4.4×0.7 inches.
Decoded for editing it occupies 62.5 KB of memory (4 bytes per pixel); uncompressed 24-bit RGB would be 46.9 KB, which is why the downloadable JPEG, PNG or WebP is far smaller.
Getting 320×50 from a phone, camera or screenshot
Filling 320×50 from a Full HD screenshot (1920×1080, 16:9) loses the least (72.2%); a vertical phone video frame (1080×1920, 9:16) loses the most (91.2%). "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 320×50. From the phone photo PixelFit takes the 4032×630 crop through 2016×315, 1008×157 and 504×78 before the last step to 320×50, 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) | 4032×630 (top and bottom cut) | 79.2% | 0.079× (reduced) | 67×50 |
| 24 MP camera photo (6000×4000, 3:2) | 6000×938 (top and bottom cut) | 76.6% | 0.053× (reduced) | 75×50 |
| Full HD screenshot (1920×1080, 16:9) | 1920×300 (top and bottom cut) | 72.2% | 0.167× (reduced) | 89×50 |
| Vertical phone video frame (1080×1920, 9:16) | 1080×169 (top and bottom cut) | 91.2% | 0.296× (reduced) | 28×50 |
How many KB is a 320×50 image?
Estimated from encodes of real sample images measured with sharp 0.35.5 / libvips 8.18.7 on 31 October 2026, interpolated to 16,000 pixels. The outdoor photo at 320×50 is about 4.8 KB at quality 75 and a scanned page about 2.9 KB; your file will differ with detail and noise.
| Image type | JPEG q60 | JPEG q75 | JPEG q90 | WebP q75 | PNG |
|---|---|---|---|---|---|
| Portrait photo | ≈ 3.7 KB | ≈ 4.7 KB | ≈ 7.3 KB | ≈ 3.9 KB | ≈ 30 KB |
| Outdoor photo | ≈ 3.7 KB | ≈ 4.8 KB | ≈ 7.5 KB | ≈ 4.1 KB | ≈ 32.1 KB |
| Scanned document | ≈ 2.2 KB | ≈ 2.9 KB | ≈ 4.9 KB | ≈ 2.1 KB | ≈ 24.1 KB |
| Flat graphic or logo | ≈ 2.2 KB | ≈ 2.7 KB | ≈ 4.1 KB | ≈ 1.8 KB | ≈ 4.7 KB |
Will a 320×50 photo fit an upload limit?
The highest JPEG or WebP quality that stays under each limit at exactly 320×50 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 94 | up to quality 94 | fits at quality 95 |
| Under 20 KB | fits at quality 95 | fits at quality 95 | fits at quality 95 |
| Under 30 KB | fits at quality 95 | fits at quality 95 | fits at quality 95 |
Is 320×50 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, 320×50 covers 1.07×0.17 in; at 150 DPI the same pixels stretch to 2.13×0.33 in with half the density.
| Resolution | Print size (inches) | Print size (cm) |
|---|---|---|
| 72 DPI | 4.44×0.69 in | 11.3×1.8 cm |
| 96 DPI | 3.33×0.52 in | 8.5×1.3 cm |
| 150 DPI | 2.13×0.33 in | 5.4×0.8 cm |
| 200 DPI | 1.6×0.25 in | 4.1×0.6 cm |
| 300 DPI | 1.07×0.17 in | 2.7×0.4 cm |
| 600 DPI | 0.53×0.08 in | 1.4×0.2 cm |
How 320×50 shows on common screens
Shown full screen without cropping, 320×50 is scaled by the factor below; bars fill the space where the shapes differ.
| Screen | Scale | Shown at | Bars |
|---|---|---|---|
| Laptop 1366×768 | 4.27× (enlarged) | 1366×213 | 555 px top and bottom in total |
| Full HD 1920×1080 | 6× (enlarged) | 1920×300 | 780 px top and bottom in total |
| QHD 2560×1440 | 8× (enlarged) | 2560×400 | 1040 px top and bottom in total |
| 4K UHD 3840×2160 | 12× (enlarged) | 3840×600 | 1560 px top and bottom in total |
| Phone, portrait 1080×1920 | 3.38× (enlarged) | 1080×169 | 1751 px top and bottom in total |
Sizes close to 320×50
No other target in the PixelFit list has exactly 32:5. The nearest sizes (by pixel count and shape) and their crop from a 320×50 image:
- 468×60 banner: 39:5 (7.8:1), 18% cropped (top and bottom cut), then 1.463× scale.
- 728×90 banner: 364:45 (8.09:1), 20% cropped (top and bottom cut), then 2.275× scale.
- 320×100 banner: 16:5, 50% cropped (left and right cut), then 2× scale.
- 970×90 banner: 97:9 (10.78:1), 40% cropped (top and bottom cut), then 3.031× scale.
How to resize a picture to 320×50
-
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 50 as the height in pixels (the panel is already set to 320×50).
-
Choose how it fits
Choose crop to fill to keep the 32:5 frame without stretching (a phone photo loses 79.2%, top and bottom cut). Fit inside keeps the whole picture as a 67×50 file instead; Pad with colour puts that on a full 320×50 canvas.
-
Pick the format and download
Choose JPG or WebP; without a KB limit PixelFit saves JPG at quality 85, about 6.2 KB for a detailed outdoor photo. Add a KB limit if the upload has one or the file should be smaller, then download the 320x50 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 320x50?
Open the image in the PixelFit panel on this page, set 320 × 50 px, choose crop to fill so nothing is stretched and download. From a 12 MP phone photo that crops 79.2% (top and bottom cut) and scales the rest by 0.079×.
What aspect ratio is 320x50?
320x50 has an aspect ratio of 32:5: landscape, width ÷ height = 6.4. No other common target has exactly this ratio: the frame is 6.4 times as wide as it is tall, and the closest familiar shape is 3:1, 113.3% away, so converting between them means a visible crop.
Is 320x50 good for print?
At 300 DPI 320x50 prints 1.07×0.17 in (2.7×0.4 cm), smaller than a passport photo, so it is a screen size rather than a print size. At 150 DPI it stretches to 2.13×0.33 in.
How big is a 320x50 JPEG file?
For a detailed outdoor photo about 4.8 KB at quality 75 (3.7 KB at 60, 7.5 KB at 90, 6.2 KB at the panel's default quality 85); a head-and-shoulders portrait is about 4.7 KB at quality 75, estimated from measured encodes. A flat graphic is smaller, a noisy low-light photo larger.
How does 320x50 look on a high-density screen?
On a 2× screen 320x50 is sharp when shown at 160×25 CSS px; shown larger, the browser enlarges it. A slot of 320×50 CSS px on a 2× screen needs a 640×100 file.
Related
Nearby sizes
- 468×60 banner 39:5 (7.8:1)
- 728×90 banner 364:45 (8.09:1)
- 320×100 banner 16:5
- 970×90 banner 97:9 (10.78:1)
- 970×250 banner 97:25 (3.88:1)
- 128×128 app icon 1:1