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Convert megabytes to kilobytes
Instant, accurate MB → KB conversion with a live converter, table and formula.
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1 megabyte = 1000 kilobytes
1 kilobyte = 0.001 megabytes
megabytes to kilobytes table
| megabytes (MB) | kilobytes (KB) |
|---|---|
| 0.5 | 500 |
| 1 | 1000 |
| 2 | 2000 |
| 5 | 5000 |
| 10 | 10000 |
| 20 | 20000 |
| 50 | 50000 |
| 100 | 100000 |
| 500 | 500000 |
| 1000 | 1000000 |
Formula
kilobytes = megabytes × 1000.
Example
10 megabytes = 10000 kilobytes.
What is a megabyte?
A megabyte (MB) is 1,000 kilobytes — about a minute of MP3 audio.
What is a kilobyte?
A kilobyte (KB) is 1,000 bytes.
Real-world reference points
A photo is a few MB; an MP3 song ~4 MB; an HD movie ~4 GB; a modern phone stores 128+ GB.
| Reference | megabytes | kilobytes |
|---|---|---|
| E-mail (text only) | 0.02 MB | 20 KB |
| Smartphone photo | 3 MB | 3,000 KB |
| MP3 song | 4 MB | 4,000 KB |
| DVD capacity | 4,700 MB | 4,700,000 KB |
| HD movie stream | 4,000 MB | 4,000,000 KB |
Mistakes to avoid with data conversions
- Megabits vs megabytes: your '100 Mbps' connection downloads at ~12.5 MB/s — ISPs quote bits, files are bytes.
- Decimal vs binary units: drives are sold in decimal GB (10⁹), so a '1 TB' drive shows ~931 'GB' (GiB) in Windows.
- Assuming video size scales with length only — resolution and bitrate matter more than minutes.
Frequently asked questions
How many kilobytes in a megabytes?+
1 megabyte = 1000 kilobytes.
How do I convert megabytes to kilobytes?+
Enter the value in the megabytes box above and the kilobytes value appears instantly. You can also type in the kilobytes box to convert the other way.
Is this MB to KB converter free?+
Yes — it is 100% free, needs no sign-up, and runs entirely in your browser.