Compress JPEG to 900 KB
900 KB keeps a JPEG safely under a 1 MB limit even when a site counts megabytes as 1,000,000 bytes. Quality stays high. Everything runs in your browser — nothing is uploaded. Need different dimensions instead? Resize or convert.
Why compress to 900 KB?
900 KB is a common upload limit for blog images, large web graphics and attachments. At that size a JPG photo can be about 2360×1770 pixels at medium quality.
About 2360×1770 px fits
At medium quality a detailed JPG photo of roughly 2360×1770 pixels lands under 900 KB; at high quality about 1650×1230.
Typical use
900 KB limits are common for blog images, large web graphics and attachments.
4× smaller than a phone photo
A 12 MP phone photo is around 3–4 MB, so it must shrink about 4×. The tool lowers quality first and resizes only if needed.
Quality to expect
At 900 KB, quality is very good. There is room for a sharp, full-screen photo.
Scans and documents
A scanned A4 page of about 2850×4030 pixels usually fits, because text pages compress far better than photos.
Exact limit, checked
900 KB is measured as 921,600 bytes (1 KB = 1,024 bytes), the way most upload forms count it, so the file is never just over.
900 KB at a glance
| Limit in bytes | 921,600 bytes |
|---|---|
| Photo at high quality | about 1650×1230 px |
| Photo at medium quality | about 2360×1770 px |
| Photo at low quality | about 3200×2400 px |
| Scanned A4 document | about 2850×4030 px |
| Reduction from a 12 MP phone photo | about 4× |
| Output format | JPG |
| Typical use | Blog images, large web graphics and attachments |
Compress an image to 900 KB in 3 steps
- Add your image — JPG, PNG, WebP or a phone photo.
- The target is already set to 900 KB. Leave “Remove EXIF metadata” ticked to save extra bytes.
- Click Compress and download a JPG under 900 KB.
New to image compression? Read the full compression guide.
A safe target under 1 MB
1 MB can mean 1,048,576 or 1,000,000 bytes. A file of 990 KB here is over the smaller one. 900 KB clears both with room to spare.
Almost no visible loss. Most phone photos only need light compression to reach 900 KB, and many keep full resolution.
Email attachments. A handful of 900 KB photos keeps a message under typical attachment limits.
Pixel guide: about 2200 pixels wide for detailed photos.
Other file-size targets
Nearby limits — each one opens the compressor already set to it:
Compress by format
Guides and presets for each format:
Compress under a file size
Keeps your image’s format — pick the limit you need:
JPEG under a file size
Frequently asked questions
Why does a 1 MB limit reject my 990 KB file?
The site counts 1 MB as 1,000,000 bytes, and 990 KB here is 1,013,760 bytes. Target 900 KB to be safe.
How many pixels fit in 900 KB?
For a detailed JPG photo, about 2360×1770 at medium quality or 3200×2400 at low quality. Simple graphics and scans can be much larger.
What quality will a 900 KB photo have?
Very good. There is room for a sharp, full-screen photo. The tool keeps the dimensions where it can and lowers compression quality first, so faces and text stay readable.
Is 900 KB the same as 900,000 bytes?
Not quite. Most forms count 1 KB as 1,024 bytes, so 900 KB is 921,600 bytes. The tool uses the same count, so a file it marks as under 900 KB is accepted.
Should I use JPG or WebP for 900 KB?
JPG is accepted everywhere and is the safe choice for forms. WebP holds about 30% more detail at the same size, ideal for websites that support it.
Why is my file still over 900 KB?
Very large or detailed images may not reach 900 KB by quality alone. Resize it first (for example to 2360 pixels wide) with the resizer, then compress again.
Are my images uploaded anywhere?
No. They are read and compressed by your own browser and never leave your device. You can disconnect from the internet once the page has loaded and it will still work.