KB to MB Converter
Convert kilobytes (KB) to megabytes (MB) instantly. Type a value — the result updates as you type, and the swap button converts the other way.
KB to MB formula
MB = KB ÷ 1000
1 kilobyte = 0.001 megabytes · 1 megabyte = 1000 kilobytes
To convert kilobytes to megabytes, divide the value by 1000. For example, 500 KB:
MB = 500 ÷ 1000MB = 0.5
So 500 KB = 0.5 MB.
Mental math shortcut
This conversion is exact, so there is no need to estimate: just divide by 1,000.
KB to MB conversion table
MB back to KB
The same values converted the other way, rounded for everyday use:
| Megabytes | Kilobytes |
|---|---|
| 0.1 MB | 100 KB |
| 0.25 MB | 250 KB |
| 0.5 MB | 500 KB |
| 0.75 MB | 750 KB |
| 1 MB | 1000 KB |
| 2 MB | 2000 KB |
| 5 MB | 5000 KB |
| 10 MB | 10000 KB |
About the units
Kilobytes (KB)
A kilobyte is 1,000 bytes in the decimal (SI) system used by storage makers; a kibibyte (KiB) is 1,024 bytes.
Megabytes (MB)
A megabyte is 1,000,000 bytes (decimal). Photos and songs are typically a few megabytes. Operating systems sometimes report mebibytes (1,048,576 bytes) labelled as MB.
Frequently asked questions
How many megabytes are in a kilobyte?
One kilobyte equals 0.001 megabytes.
What is 500 KB in MB?
500 KB = 0.5 MB.
How do I convert MB back to KB?
Multiply the megabytes by 1000.