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Compress an image to between 100 KB and 200 KB
For a 100–200 KB requirement, aim for 102,400 to 200,000 bytes: that window passes whether the form counts 1 KB as 1000 or 1024 bytes. At quality 75 a 4:3 photo lands inside it from about 726 × 544 up to 1,015 × 761 pixels.
100–200 KB
JPG · 100-200 KB (102,400-200,000 bytes) · original pixel size · white background
PixelFit aims between 102,400 and 200,000 bytes, so the file passes whether the form counts 1 KB as 1,000 or 1,024 bytes.
Fit, background and padding white background · padding off
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.
The safe byte window for 100–200 KB
"At least 100 KB" is 100,000 or 102,400 bytes, so the safe minimum is 102,400. "At most 200 KB" is 200,000 or 204,800 bytes, so the safe maximum is 200,000. The window is 97,600 bytes wide, 49 % of the maximum: narrow enough that a fixed pixel size has only a short band of qualities landing inside.
If the best result under 200,000 bytes is below 102,400, PixelFit raises quality, then pads the file only if you opt in (below).
Pixel sizes that land between 100 KB and 200 KB
At quality 75, each kind of image lands in the 100–200 KB window from the first size up to the second.
| Image | Reaches 100 KB at | Stays under 200 KB up to |
|---|---|---|
| Head-and-shoulders portrait | 897 × 1,120 | 1,347 × 1,682 |
| Outdoor landscape (12 MP phone photo) | 726 × 544 | 1,015 × 761 |
| Scanned typed document page | 731 × 918 | 1,115 × 1,401 |
| Handwritten letter with signature | 1,376 × 1,131 | 1,949 × 1,602 |
| Flat-colour graphic (flag) | 2,737 × 1,915 | 4,538 × 3,176* |
Fixed pixel sizes against 100–200 KB
When the form fixes the pixels, the file lands in the 102,400–200,000 byte window between these two JPEG qualities; "pad" means even quality 95 stays under 100 KB.
| Pixel size | Lowest quality reaching 100 KB | Highest quality under 200 KB |
|---|---|---|
| 200 × 230 (small ID photo) | none: pad 79,977 bytes | 95+ |
| 413 × 531 (35 × 45 mm at 300 DPI) | none: pad 28,488 bytes | 95+ |
| 600 × 600 (2 × 2 inch at 300 DPI) | 94 | 95+ |
| 800 × 600 (4:3 web photo) | 66 | 89 |
| 1080 × 1080 (square social post) | any (30 reaches it) | 50 |
| 1200 × 1600 (3:4 portrait upload) | 46 | 79 |
| 1240 × 1754 (A4 page at 150 DPI) | any (30 reaches it) | 62 |
What falls below 100 KB
Even at quality 95, the highest quality we measured (the tool also tries 100), a 4:3 photo stays under 102,400 bytes up to about 489 × 366 pixels (23 % of the pixels that still fit under 200 KB at quality 75); a handwritten page up to 725 × 596 and a portrait up to 512 × 639. From there to 726 × 544 a photo reaches 100 KB only above quality 75, and from 726 × 544 to 1,015 × 761 quality 75 lands inside 100–200 KB.
A 413 × 531 image (35 × 45 mm at 300 DPI) is about 72.2 KB at quality 95, so 28 % of a 102,400-byte file would be padding; a 200 × 230 image (small ID photo) is about 21.9 KB at quality 95, so 78 % of a 102,400-byte file would be padding. Padding satisfies a file-size check of 100–200 KB and leaves the pixels unchanged; where the form does not fix the pixel size, a larger image is the cleaner way to reach 100 KB.
Upload sizes against 100–200 KB at quality 75
800 × 600 (about 121 KB), 1200 × 1600 (about 170 KB) land inside 100–200 KB as is. Below 100 KB: 413 × 531 (31.2 KB), which needs padding; 600 × 600 (45.5 KB), which reaches it from quality 94. Just above 200 KB: 1080 × 1080 (about 307,000 bytes), 1240 × 1754 (about 257,700 bytes), which need a lower quality or fewer pixels.
Inside 100–200 KB at quality 75, a handwritten page runs from 1,376 × 1,131 to 1,949 × 1,602 pixels and a portrait from 897 × 1,120 to 1,347 × 1,682.
How to compress an image to 100–200 KB
-
Open the tool above
Preset: minimum 100 KB, maximum 200 KB, JPG.
-
Add the image
Drop, paste or pick it; the 102,400–200,000 byte window is applied for you.
-
Fix pixels only if required
With pixels fixed, only quality moves (and padding, if you allow it, to reach 100 KB).
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Download
name-200kb.jpg; compare its byte count with 100–200 KB.
Forms that ask for 100–200 KB
Upload specs in our dataset with exactly this window. Verify with the official notice before you submit.
100–200 KB
Sources
- Measured by PixelFit with sharp 0.35.5 / libvips 8.18.7 on 31 October 2026.
- Sample images, Wikimedia Commons, checked 31 October 2026: landscape (CC0 1.0) commons.wikimedia.org/w/index.php?curid=154070378; portrait commons.wikimedia.org/w/index.php?curid=23956389; typed page commons.wikimedia.org/w/index.php?curid=194775753; handwritten letter commons.wikimedia.org/w/index.php?curid=90423615; flag commons.wikimedia.org/w/index.php?curid=361734 (public domain).
- Binary prefixes, NIST, checked 31 October 2026: physics.nist.gov/cuu/Units/binary.html
Frequently asked questions
How do I compress an image to between 100 KB and 200 KB?
Use the tool on this page, preset to 100–200 KB: it returns a JPG of 102,400 to 200,000 bytes. A 4:3 photo stays under 200 KB up to about 1,015 × 761 at quality 75.
What if my image comes out smaller than 100 KB?
PixelFit raises the quality first, up to 100. A 413 × 531 image (35 × 45 mm at 300 DPI) is still only about 72.2 KB at quality 95, 28,488 bytes short of 100–200 KB, so it needs padding: opt in, and a JPEG comment segment adds the missing bytes without touching the picture.
Is a 148 KB file inside 100–200 KB?
Yes: anything from 102,400 to 200,000 bytes passes under both KB definitions. Exactly 204,800 bytes passes only where 1 KB = 1024 bytes.
Which pixel size lands between 100 KB and 200 KB?
At quality 75: a photo from about 726 × 544 to 1,015 × 761, a portrait from 897 × 1,120 to 1,347 × 1,682.
Related
Single limits
- Compress to 90 KB
- Compress to 100 KB Maximum only
- Compress to 120 KB
- Compress to 150 KB
- Compress to 200 KB Maximum only
- Compress to 240 KB
Ranges sharing a limit
Pixel sizes under 200 KB
- 1200×630 link preview image about 191 KB as a quality-75 JPG
- 1000×750 landscape about 189 KB as a quality-75 JPG
- 1500×500 landscape about 189 KB as a quality-75 JPG