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Convert bytes to kilobytes
Instant, accurate B → KB conversion with a live converter, table and formula.
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1 byte = 0.001 kilobytes
1 kilobyte = 1000 bytes
bytes to kilobytes table
| bytes (B) | kilobytes (KB) |
|---|---|
| 0.5 | 0.0005 |
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 50 | 0.05 |
| 100 | 0.1 |
| 500 | 0.5 |
| 1000 | 1 |
Formula
kilobytes = bytes × 0.001.
Example
10 bytes = 0.01 kilobytes.
What is a byte?
A byte (B) is 8 bits, the basic unit of digital information (one character).
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 | bytes | kilobytes |
|---|---|---|
| E-mail (text only) | 20,000 B | 20 KB |
| Smartphone photo | 3,000,000 B | 3,000 KB |
| MP3 song | 4,000,000 B | 4,000 KB |
| DVD capacity | 4,700,000,000 B | 4,700,000 KB |
| HD movie stream | 4,000,000,000 B | 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 bytes?+
1 byte = 0.001 kilobytes.
How do I convert bytes to kilobytes?+
Enter the value in the bytes box above and the kilobytes value appears instantly. You can also type in the kilobytes box to convert the other way.
Is this B to KB converter free?+
Yes — it is 100% free, needs no sign-up, and runs entirely in your browser.