How to convert megabytes to kilobytes
kB = MB × 1,000Multiply the value in megabytes by 1,000. To go the other way, multiply by 0.001 (or divide by 1,000).
A megabyte is larger than a kilobyte: one megabyte contains 1,000 kilobytes.
Worked examples
- 1 megabyte1 MB × 1,000 = 1,000 kB
- 5 megabytes5 MB × 1,000 = 5,000 kB
- 10 megabytes10 MB × 1,000 = 10,000 kB
- 20 megabytes20 MB × 1,000 = 20,000 kB
- 100 megabytes100 MB × 1,000 = 100,000 kB
Megabytes to kilobytes conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Megabytes (MB) | Kilobytes (kB) |
|---|---|
| 0.1 MB | 100 kB |
| 0.25 MB | 250 kB |
| 0.5 MB | 500 kB |
| 1 MB | 1,000 kB |
| 2 MB | 2,000 kB |
| 3 MB | 3,000 kB |
| 4 MB | 4,000 kB |
| 5 MB | 5,000 kB |
| 6 MB | 6,000 kB |
| 7 MB | 7,000 kB |
| 8 MB | 8,000 kB |
| 9 MB | 9,000 kB |
| 10 MB | 10,000 kB |
| Megabytes (MB) | Kilobytes (kB) |
|---|---|
| 12 MB | 12,000 kB |
| 15 MB | 15,000 kB |
| 20 MB | 20,000 kB |
| 25 MB | 25,000 kB |
| 30 MB | 30,000 kB |
| 40 MB | 40,000 kB |
| 50 MB | 50,000 kB |
| 75 MB | 75,000 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 units
Megabyte (MB)
1,000,000 bytes (decimal). A minute of MP3 audio is about 1 MB. One megabyte equals 8,000,000 bits (b).
Kilobyte (kB)
1,000 bytes (decimal). Some software still uses “KB” for 1,024 bytes; that is properly a kibibyte (KiB). One kilobyte equals 8,000 bits (b).
Frequently asked questions
How many kilobytes are in one megabyte?
There are 1,000 kilobytes in one megabyte, and this value is exact by definition.
How do I convert megabytes to kilobytes?
Multiply the number of megabytes by 1,000. For example, 10 MB × 1,000 = 10,000 kB.
How many megabytes are in one kilobyte?
One kilobyte equals 0.001 megabytes. That is the reverse factor, 1 ÷ 1,000.
What is 10 megabytes in kilobytes?
10 MB = 10,000 kB.
Is this MB to kB converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.