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MB to KB Converter
Convert megabytes to kilobytes (and bytes, GB, TB) instantly — and shrink an image to a KB limit for a form.
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How to use the MB to KB Converter
1
Type a number
Enter the size and pick the unit. The answer updates as you type.
2
Need a file under a KB limit?
Use the image shrinker below: pick the target size and download.
3
Done
No upload, no account.
Questions
How many KB in a MB?
1 MB = 1,000 KB in the decimal system used by disk makers and most websites, or 1,024 KB in the binary system Windows uses (1 MiB = 1,024 KiB). The converter shows both.
Why does my 2 MB photo fail a 200 KB upload limit?
Forms limit file size in KB. Use the image shrinker on this page to bring a JPG down to the limit.
What is a byte?
One byte is 8 bits — roughly one character of text. A kilobyte is a thousand of them, a megabyte a million, a gigabyte a billion.
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