Updated · how we check
Resize an image to 600×315 pixels
To resize an image to 600×315 px, enter 600 × 315 px and pick crop to fill so the 40:21 (about 1.91:1) frame is not stretched: a 4:3 phone photo loses 30% of its area (a centred 4032×2117 crop). The result has 0.19 megapixels; as a JPEG, a detailed outdoor photo is about 63.5 KB at the panel's default quality 85 (47.3 KB at quality 75).
600×315 px
JPG · no file-size limit · 600x315 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.
600×315 at a glance
| Pixel size | 600×315 px (189,000 pixels) |
|---|---|
| Aspect ratio | 40:21 (about 1.91:1), landscape (width ÷ height = 1.9048) |
| Megapixels | 0.19 MP |
| Decoded in memory | 738 KB RGBA · 554 KB RGB |
| Sharp on screen at | 600×315 CSS px at 1×, 300×158 at 2×, 200×105 at 3× density |
| Print size at 300 DPI | 2×1.05 in (5.1×2.7 cm) |
| Estimated JPEG (outdoor photo, quality 75) | 47.3 KB |
| JPEG without a KB limit (panel default, quality 85) | 63.5 KB |
What 600×315 means in pixels
600×315 is a landscape frame, 1.9 times as wide as it is tall, 189,000 pixels in total (0.19 megapixels). Its sides only reduce to 40:21; that is 0.3% away from the familiar 1.91:1 shape, so a 1.91:1 crop needs only a sliver trimmed to land on exactly 600×315.
A 12 MP phone photo has 65 times as many pixels, so reaching 600×315 is a clean reduction with no invented detail. Shown 1:1 it fills 600×315 CSS px on a standard screen and 300×158 CSS px on a 2× (Retina-class) screen; at 72 DPI the same pixels span 8.3×4.4 inches.
Decoded for editing it occupies 738 KB of memory (4 bytes per pixel); uncompressed 24-bit RGB would be 554 KB, which is why the downloadable JPEG, PNG or WebP is far smaller.
Where 600×315 is used
Each line comes from the page listed under Sources, checked October 2026. Platform sizes change, so check the source before you rely on it.
- Minimum for link posts with a larger image (Open Graph og:image).
Getting 600×315 from a phone, camera or screenshot
Filling 600×315 from a Full HD screenshot (1920×1080, 16:9) loses the least (6.7%); a vertical phone video frame (1080×1920, 9:16) loses the most (70.5%). "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 600×315. From the phone photo PixelFit takes the 4032×2117 crop through 2016×1058 and 1008×529 before the last step to 600×315, 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) | 4032×2117 (top and bottom cut) | 30% | 0.149× (reduced) | 420×315 |
| 24 MP camera photo (6000×4000, 3:2) | 6000×3150 (top and bottom cut) | 21.3% | 0.1× (reduced) | 473×315 |
| Full HD screenshot (1920×1080, 16:9) | 1920×1008 (top and bottom cut) | 6.7% | 0.313× (reduced) | 560×315 |
| Vertical phone video frame (1080×1920, 9:16) | 1080×567 (top and bottom cut) | 70.5% | 0.556× (reduced) | 177×315 |
How many KB is a 600×315 image?
Estimated from encodes of real sample images measured with sharp 0.35.5 / libvips 8.18.7 on 31 October 2026, interpolated to 189,000 pixels. The outdoor photo at 600×315 is about 47.3 KB at quality 75 and a scanned page about 32.2 KB; your file will differ with detail and noise.
| Image type | JPEG q60 | JPEG q75 | JPEG q90 | WebP q75 | PNG |
|---|---|---|---|---|---|
| Portrait photo | ≈ 21.8 KB | ≈ 28 KB | ≈ 45.5 KB | ≈ 17.8 KB | ≈ 270 KB |
| Outdoor photo | ≈ 35.3 KB | ≈ 47.3 KB | ≈ 77.7 KB | ≈ 42.1 KB | ≈ 367 KB |
| Scanned document | ≈ 24.3 KB | ≈ 32.2 KB | ≈ 53 KB | ≈ 23.5 KB | ≈ 264 KB |
| Flat graphic or logo | ≈ 9.6 KB | ≈ 12 KB | ≈ 18 KB | ≈ 7.3 KB | ≈ 21.3 KB |
Will a 600×315 photo fit an upload limit?
The highest JPEG or WebP quality that stays under each limit at exactly 600×315 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 | up to quality 50 | does not fit even at quality 30 | does not fit even at quality 30 |
| Under 30 KB | up to quality 76 | up to quality 47 | up to quality 44 |
| Under 50 KB | up to quality 91 | up to quality 76 | up to quality 79 |
| Under 100 KB | fits at quality 95 | up to quality 93 | fits at quality 95 |
Is 600×315 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, 600×315 covers 2×1.05 in; at 150 DPI the same pixels stretch to 4×2.1 in with half the density.
| Resolution | Print size (inches) | Print size (cm) |
|---|---|---|
| 72 DPI | 8.33×4.38 in | 21.2×11.1 cm |
| 96 DPI | 6.25×3.28 in | 15.9×8.3 cm |
| 150 DPI | 4×2.1 in | 10.2×5.3 cm |
| 200 DPI | 3×1.58 in | 7.6×4 cm |
| 300 DPI | 2×1.05 in | 5.1×2.7 cm |
| 600 DPI | 1×0.53 in | 2.5×1.3 cm |
How 600×315 shows on common screens
Shown full screen without cropping, 600×315 is scaled by the factor below; bars fill the space where the shapes differ.
| Screen | Scale | Shown at | Bars |
|---|---|---|---|
| Laptop 1366×768 | 2.28× (enlarged) | 1366×717 | 51 px top and bottom in total |
| Full HD 1920×1080 | 3.2× (enlarged) | 1920×1008 | 72 px top and bottom in total |
| QHD 2560×1440 | 4.27× (enlarged) | 2560×1344 | 96 px top and bottom in total |
| 4K UHD 3840×2160 | 6.4× (enlarged) | 3840×2016 | 144 px top and bottom in total |
| Phone, portrait 1080×1920 | 1.8× (enlarged) | 1080×567 | 1353 px top and bottom in total |
Other same-shape sizes
These targets share the exact 40:21 ratio of 600×315, so resizing between them is a pure scale with nothing cropped.
| Size | Scale from 600×315 | Megapixels |
|---|---|---|
| 1200×630 link preview image | 2× | 0.76 MP |
How to resize a picture to 600×315
-
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 600 as the width and 315 as the height in pixels (the panel is already set to 600×315).
-
Choose how it fits
Choose crop to fill to keep the 40:21 (about 1.91:1) frame without stretching (a phone photo loses 30%, top and bottom cut). Fit inside keeps the whole picture as a 420×315 file instead; Pad with colour puts that on a full 600×315 canvas.
-
Pick the format and download
Choose JPG or WebP; without a KB limit PixelFit saves JPG at quality 85, about 63.5 KB for a detailed outdoor photo. Add a KB limit if the upload has one or the file should be smaller, then download the 600x315 file.
Sources
- Images in link shares, Meta for Developers, checked 31 October 2026: developers.facebook.com/docs/sharing/webmasters/images/
- 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 600x315?
Open the image in the PixelFit panel on this page, set 600 × 315 px, choose crop to fill so nothing is stretched and download. From a 12 MP phone photo that crops 30% (top and bottom cut) and scales the rest by 0.149×.
What aspect ratio is 600x315?
600x315 has an aspect ratio of 40:21 (about 1.91:1): landscape, width ÷ height = 1.9048. Sizes with the same ratio include 1200×630 link preview image.
Is 600x315 good for print?
At 300 DPI 600x315 prints 2×1.05 in (5.1×2.7 cm). At 150 DPI it stretches to 4×2.1 in.
How big is a 600x315 JPEG file?
For a detailed outdoor photo about 47.3 KB at quality 75 (35.3 KB at 60, 77.7 KB at 90, 63.5 KB at the panel's default quality 85); a head-and-shoulders portrait is about 28 KB at quality 75, estimated from measured encodes. A flat graphic is smaller, a noisy low-light photo larger.
How does 600x315 look on a high-density screen?
On a 2× screen 600x315 is sharp when shown at 300×158 CSS px; shown larger, the browser enlarges it. A slot of 600×315 CSS px on a 2× screen needs a 1200×630 file.
Related
Same ratio
Nearby sizes
- 640×360 widescreen 16:9
- 600×400 landscape 3:2
- 854×480 (FWVGA) 427:240 (about 16:9)
- 800×480 (WVGA) 5:3
- 1000×500 landscape 2:1
- 960×540 (qHD) 16:9