Megabytes to kilobytes
Multiply megabytes by 1,000 to get kilobytes.
10 MB = 10,000 kB
How to convert megabytes to kilobytes
The kilobyte is one thousand bytes (10³ B) in the decimal (SI) convention. The megabyte is one million bytes (10⁶ B) in the decimal convention.
Worked example — 10 MB: 10 × 1,000 = 10,000 kB.
Megabytes to kilobytes table
| Megabytes | Kilobytes |
|---|---|
| 0.5 MB | 500 kB |
| 1 MB | 1,000 kB |
| 2 MB | 2,000 kB |
| 5 MB | 5,000 kB |
| 10 MB | 10,000 kB |
| 25 MB | 25,000 kB |
| 50 MB | 50,000 kB |
| 100 MB | 100,000 kB |
| 500 MB | 500,000 kB |
Reverse and related
About megabytes and kilobytes
Megabyte (MB)
1 MB = 1,000 kBDefinition. One million bytes (10⁶ B) in the decimal convention
History and origin
The megabyte applies the metric mega prefix for a million, and like the kilobyte was historically used for both a million and 1048576 bytes. The decimal million-byte value is now the standard for storage.
Current use
Megabytes measure photos, songs and small downloads, and mobile data is often counted in megabytes.
Source: IEC 80000-13 (quantities and units — information science); NIST on binary prefixes
Kilobyte (kB)
1 kB = 0.001 MBDefinition. One thousand bytes (10³ B) in the decimal (SI) convention
History and origin
The kilobyte took the metric kilo prefix for a thousand, but in computing it was often used loosely for 1024 bytes. The IEC later defined the kibibyte for the binary value to remove the ambiguity.
Current use
Kilobytes measure small files and text documents; in strict decimal use a kilobyte is exactly one thousand bytes.
Source: IEC 80000-13 (quantities and units — information science); NIST on binary prefixes
Where people use this
Megabytes: photos and songs, data caps. Kilobytes: small files, documents. 1 MB is 1000 kB.
Every value is carried to full double precision; the display is rounded.
Both units are defined in IEC 80000-13 (quantities and units — information science); NIST on binary prefixes.
Questions people ask
How many kB is 1 MB?
One megabyte is 1000 kilobytes (decimal).
How many kB is 5 MB?
5 MB is 5000 kB.
How many kB is 2 MB?
2 MB is 2000 kB.