File Size Converter (KB to MB)
Convert file sizes between bytes, kilobytes, megabytes and gigabytes. Interpret upload and download limits correctly. Free, instant, private in-browser.
Convert any storage size between B, KB, MB and GB, so you can interpret download and upload limits correctly. Enter a value in one unit and the converter returns every other unit instantly, all in your browser.
How it works
What this calculator does
Convert any storage size between B, KB, MB and GB, so you can interpret download and upload limits correctly. Enter a value in one unit and the converter returns every other unit instantly, all in your browser.
Why the math matters
Accurate numbers prevent costly print and storage mistakes.
Frequently asked questions
How many KB are in a MB?
One megabyte equals 1024 kilobytes. Converting between them uses powers of 1024, so 1 MB is 1024 KB and 1 GB is 1024 MB.
Is 500KB the same as 0.5MB?
Roughly. 500KB is 0.488 MB by the 1024 rule that storage and operating systems use, which is why portal limits can be confusing. Estimate your actual image bytes with the image file size calculator.
Which unit should I use for image limits?
Use whichever a form states. Most sites state limits in KB or MB, so convert your file size to match the exact unit the portal asks for.