How to convert megabytes to kilobytes
One megabyte equals 1,000 kilobytes. To convert, multiply the number of megabytes by 1,000:
Mental-math shortcut: Multiply megabytes by 1,000 (decimal) — or by 1,024 for binary units.
Example
Convert 1.5 megabytes to kilobytes: 1.5 MB × 1,000 = 1,500 KB.
Megabytes to Kilobytes conversion chart
| Megabytes (MB) | Kilobytes (KB) |
|---|---|
| 0.1 | 100 |
| 0.25 | 250 |
| 0.5 | 500 |
| 1 | 1,000 |
| 1.5 | 1,500 |
| 2 | 2,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 20 | 20,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
What is a megabyte?
A megabyte (MB) is 1,000,000 bytes, or 1,000 kilobytes, in the decimal system. In the binary convention used by Windows, a "megabyte" means 1,048,576 bytes (a mebibyte, MiB). A smartphone photo is typically 2–5 MB, and a minute of MP3 music is about 1 MB.
What is a kilobyte?
A kilobyte (KB) is 1,000 bytes in the decimal (SI) system used by storage makers, macOS and most internet speeds. Windows and some older software use the binary convention, where a "kilobyte" is 1,024 bytes — properly called a kibibyte (KiB). A page of plain text is roughly 2–4 KB.
Converting the other way? Use the Kilobytes to Megabytes converter.
Frequently asked questions
How many kilobytes is one megabyte?
One megabyte is 1,000 kilobytes.
How do I convert megabytes to kilobytes?
Multiply the value in megabytes by 1,000. For example, 1.5 MB × 1,000 = 1,500 KB.
What is 1 MB in kilobytes?
1 MB is 1,000 kilobytes.
How do I convert kilobytes to megabytes?
Multiply kilobytes by 0.001 (or divide by 1,000). You can also use our Kilobytes to Megabytes converter.
Conversions use the internationally agreed definitions of each unit (for example, 1 inch = 2.54 cm exactly) and are rounded for display. Volume converters use US customary units unless stated otherwise.
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