Convert megabytes to kilobytes
Enter a value in megabytes (MB) to get kilobytes (KB). One megabyte is 1,000 kilobytes; one kilobyte is 0.001 megabytes.
How to use the Megabyte to kilobyte
- Type the number of megabytes.
- Click Convert.
- Read the result in kilobytes, plus the same value in every other digital storage unit.
MB to KB formula
kilobytes = megabytes × 1,000. To go the other way, megabytes = kilobytes × 0.001 (see kilobytes to megabytes).
Worked example
12 MB × 1,000 = 12,000 KB.
Megabytes to kilobytes conversion table
| Megabytes | Kilobytes |
|---|---|
| 0.1 MB | 100 KB |
| 0.5 MB | 500 KB |
| 1 MB | 1,000 KB |
| 2 MB | 2,000 KB |
| 3 MB | 3,000 KB |
| 5 MB | 5,000 KB |
| 10 MB | 10,000 KB |
| 20 MB | 20,000 KB |
| 25 MB | 25,000 KB |
| 50 MB | 50,000 KB |
| 100 MB | 100,000 KB |
| 250 MB | 250,000 KB |
| 500 MB | 500,000 KB |
| 1,000 MB | 1,000,000 KB |
About the megabyte
1,000,000 bytes. A typical phone photo is 2–5 MB.
About the kilobyte
1,000 bytes (decimal, as used by drive makers and macOS). Windows shows KiB (1,024 bytes) but labels it KB.
Related conversions
kilobytes to megabytes · megabytes to gigabytes · megabytes to mebibytes · any unit.
Frequently asked questions
How many kilobytes in a megabyte?
1,000 kilobytes.
How many megabytes in a kilobyte?
0.001 megabytes.
Is the factor exact?
The factor 1,000 is derived from the units' exact definitions; only the display is rounded.
Privacy
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Last updated 2026-09-23.