Exact size · MB → KB

MB to KB converter for photos

Phone photos are 3 to 10 MB. Forms want kilobytes. Drop the photo, type the KB you need, and download the smaller file. Nothing is uploaded.

1 MB = 1024 KBKeeps the lookAny targetNo upload
0 uploads

Drop photos here or tap to choose

JPG, PNG, WebP, HEIC (iPhone), RAW · up to 80 MB each

More options
1080 px is the safe choice. 1440 px can look sharper in the newest app versions.
Sharpen
The result will be at or under this size.
More options
Sharpen

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0 uploads. Your photos never leave this device, and the tool keeps working with Wi-Fi off.Check the Network tab in your browser: no image requests, ever. Tip: paste a photo with Ctrl+V / ⌘V.

1 MB
1024 KB
Typical phone photo
3–10 MB
Typical result
100–500 KB
Quality
Highest that fits

Converting MB to KB is compression, not renaming

A file's size can't be changed by renaming it. To turn a 5 MB photo into a 200 KB photo you have to re-encode it with fewer bytes, and the only way to do that well is to lower the JPEG quality a little and, if necessary, the pixel dimensions. Done properly the photo looks the same on a phone screen; done badly it looks blocky.

The converter here picks the highest quality that fits your number and only reduces pixels as a last step, so the result is as close to the original as the limit allows.

Quick reference

TargetTypical pixels keptGood for
20 KB300–450 pxExam photos and signatures
50 KB550–700 pxForm photos, profile pictures
100 KB900–1100 pxJob portals, web thumbnails
200 KB1300–1500 pxShops, blogs, LinkedIn
500 KBup to 2000 pxEmail, forums
1 MBfull phone resolutionInstagram, CMS uploads
Try it on your own photoDrop a photo at the top of the page. Ten seconds later it's sized, sharpened and ready to post.
Compress a photo

Questions people ask

How many KB is 1 MB?

1024 KB. A 5 MB photo is 5120 KB; compressing it to 200 KB removes 96% of the bytes, mostly invisible detail.

Will converting MB to KB make my photo blurry?

Not at normal viewing sizes if the target is 100 KB or more. Very small targets like 20 KB do reduce the pixels, which is fine for forms but not for printing.

Can I convert several photos at once?

Yes, up to 50 files. Each one is compressed to the same limit and you can download them together as a ZIP.

More ways to use it

This page uses the same private tool as the homepage; only the preset changes.

IGCOMPRESSOR is an independent tool and is not affiliated with Instagram, Meta, WhatsApp, YouTube, or any other platform mentioned.