Kilobyte to Byte Converter
One Kilobyte equals 1024 Byte (1 KB = 1024 B). Multiply a Kilobyte value by 1024 to get the equivalent in Byte. Use the calculator above for instant results, or follow the formula, worked examples, and reference table below.
Formula
B = KB × 1024
Multiply the Kilobyte value by 1024 to get the equivalent value in Byte.
Example Conversions
1 Kilobyte (KB)
1024 Byte (B)
5 Kilobyte (KB)
5120 Byte (B)
10 Kilobyte (KB)
10240 Byte (B)
25 Kilobyte (KB)
25600 Byte (B)
100 Kilobyte (KB)
102400 Byte (B)
Conversion Table
| Kilobyte (KB) | Byte (B) |
|---|---|
| 0.1 | 102.4 |
| 0.5 | 512 |
| 1 | 1024 |
| 2 | 2048 |
| 5 | 5120 |
| 10 | 10240 |
| 25 | 25600 |
| 50 | 51200 |
| 100 | 102400 |
| 250 | 256000 |
| 500 | 512000 |
| 1000 | 1024000 |
How to Convert Manually
Use these steps to convert Kilobyte values to Byte without the calculator.
- Write down the value in Kilobyte (KB) that you want to convert.
- Multiply that value by 1024.
- For example, 10 Kilobyte × 1024 = 10240 Byte.
- Label the result as Byte (B).
Relative Size Comparison
This chart shows the visual difference in size between exactly one Kilobyte and one Byte.
About Kilobyte and Byte
The kilobyte here is 1,024 bytes (the binary convention operating systems use, formally 'kibibyte'). Small documents, icons, and emails are kilobyte-scale. The byte is 8 bits, the basic addressable unit of computer storage. One byte holds a single ASCII character, and all file sizes build up from it. One Kilobyte equals 1024 Byte (1 KB = 1024 B). Kilobyte to Byte conversion comes up most often in text documents and emails and in icons and small images, typically when figures need restating for file size fundamentals.
Precision and Rounding: This converter uses the binary convention (1 KB = 1,024 bytes), which matches how operating systems report file and memory sizes. Storage manufacturers label drives with decimal units (1 GB = 1,000,000,000 bytes), which is why a '1 TB' drive shows roughly 931 GB in your OS — check which convention your source uses.
Conversion factors per NIST Special Publication 811 and the BIPM SI Brochure (9th edition) (reference).
Worked Example
15 Kilobyte equals 15360 Byte.
15 KB × 1024 = 15360 B
FAQ
How do I convert Kilobyte to Byte?
Multiply the Kilobyte value by 1024 to get the equivalent value in Byte.
What is the formula for Kilobyte to Byte?
The formula is B = KB × 1024.
How many Byte are in 1 Kilobyte?
1 Kilobyte equals 1024 Byte.
Can I convert Byte back to Kilobyte?
Yes. 1 Byte equals 0.0009765625 Kilobyte, and the related converter can reverse the calculation.
What are common names for Kilobyte and Byte?
Kilobyte is shown as KB and may also be searched as kilobytes, kb. Byte is shown as B and may also be searched as bytes.
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