This megabytes to kilobytes converter gives you the MB to KB result instantly, in your browser, with the exact ratio so you can verify it. 1 megabyte is exactly 1,000 kilobytes, and going the other way, 1 kilobyte is 0.001 megabytes. Megabytes are a decimal storage unit as used by drive manufacturers and most operating systems; kilobytes are a decimal storage unit as used by drive manufacturers and most operating systems.
To convert by hand, multiply the number of megabytes by 1,000. For example, 10 megabytes is 10,000 kilobytes and 100 megabytes is 1 kilobytes. The table below lists the most requested values, and the converter above accepts decimals for anything in between.
MB to KB formula
KB = MB × 1,000
1 megabyte is exactly 1,000 kilobytes. Multiply the value in megabytes by that factor to get kilobytes.
Megabytes to Kilobytes conversion table
| megabytes | kilobytes | Rounded |
|---|---|---|
| 1 MB | 1,000 KB | 1 |
| 2 MB | 2,000 KB | 2 |
| 4 MB | 4,000 KB | 4 |
| 8 MB | 8,000 KB | 8 |
| 16 MB | 16,000 KB | 16 |
| 32 MB | 32,000 KB | 32 |
| 50 MB | 50,000 KB | 5 |
| 64 MB | 64,000 KB | 64 |
| 100 MB | 1 KB | 1 |
| 128 MB | 128 KB | 128 |
| 200 MB | 2 KB | 2 |
| 256 MB | 256 KB | 256 |
| 500 MB | 5 KB | 5 |
| 512 MB | 512 KB | 512 |
| 1,000 MB | 1 KB | 1 |
| 1,024 MB | 1,024 KB | 1,024 |
| 2,000 MB | 2 KB | 2 |
| 2,048 MB | 2,048 KB | 2,048 |
| 5,000 MB | 5 KB | 5 |
| 10,000 MB | 1 KB | 1 |
Frequently asked questions
How many kilobytes are in 5 megabytes?
5 MB = 5,000 KB. Multiply 5 by 1,000, the number of kilobytes in one megabyte. The converter on this page does the same arithmetic for any value, including decimals.
What is the formula to convert megabytes to kilobytes?
KB = MB × 1,000. The factor comes from the definitions of the units: 1 megabyte is exactly 1,000 kilobytes. Worked example: 12 MB = 12,000 KB.
Is 30 MB the same as 30,000 KB?
Yes. 30 MB = 30,000 KB. Rounded to the nearest whole unit it is 3 KB.
How do I convert kilobytes back to megabytes?
Divide by 1,000, or multiply by 0.001: 1 kilobyte is 0.001 megabytes. The kilobytes to megabytes page linked above lists common values the other way.
Is the MB to KB conversion exact?
1 megabyte is exactly 1,000 kilobytes. The ratio is fixed by international agreement, so results are exact apart from rounding in the display.