Convert Bytes to Kilobytes (B to kB)
1 byte (B) = 0.001 kilobytes (kB). 1 kB = 1000 B. Example: 15 B = 15 × 0.001 = 0.015 kB.
Also searched as bytes to kB, bytes in kB, bytes into kilobytes, B to kB, B in kilobytes, B into kilobyte, byte to kilobyte, B to kilobytes converter and how many kilobytes in a byte.
1 B = 0.001 kB
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk byte to kilobyte converter to paste a column from Excel.
How to Convert Byte to Kilobyte
- 1 B = 0.001 kB
- 1 kB = 1000 B
- Example: convert 15 B to kB: 15 B = 15 × 0.001 kB = 0.015 kB
Formula
kB = B ÷ 1000
Derivation from SI units:
- 1 byte = 8 bits (an octet).
- 1 kB = 1000 bytes = 8000 bits (decimal, SI).
- 1 B = 8 bit ÷ 8000 bit per kB = 0.001 kB
Both units are defined exactly, so the factor is exact. Byte definition: byte; Kilobyte definition: kilobyte.
Worked examples
- A reading of 512 B converts to 0.512 kB.
512 B × 0.001 = 0.512 kB - A value of 4096 B is 4.096 kB.
4096 B × 0.001 = 4.096 kB
Byte to Kilobyte conversion table
| Bytes (B) | Kilobytes (kB) |
|---|---|
| 1 B | 0.001 kB |
| 8 B | 0.008 kB |
| 64 B | 0.064 kB |
| 512 B | 0.512 kB |
| 1000 B | 1 kB |
| 1024 B | 1.024 kB |
| 4096 B | 4.096 kB |
| 65536 B | 65.536 kB |
| 1000000 B | 1000 kB |
| 1048576 B | 1048.576 kB |
Where it's used
Bytes are used for file and memory sizes, while kilobytes appear in small files, emails and web pages. Both measure amount of digital information, so the conversion is a fixed factor.
Byte to other data storage units
| Conversion | 1 B equals |
|---|---|
| byte to kilobyte | 0.001 kB |
| byte to megabyte | 0.000001 MB |
| byte to gigabyte | 1 × 10⁻⁹ GB |
| byte to terabyte | 1 × 10⁻¹² TB |
| byte to bit | 8 bit |
| byte to megabit | 0.000008 Mbit |
| byte to kibibyte | 0.0009765625 KiB |
| byte to mebibyte | 9.536743164 × 10⁻⁷ MiB |
Show 5 more units
| byte to gibibyte | 9.313225746 × 10⁻¹⁰ GiB |
|---|---|
| byte to kilobit | 0.008 kbit |
| byte to gigabit | 8 × 10⁻⁹ Gbit |
| byte to petabyte | 1 × 10⁻¹⁵ PB |
| byte to tebibyte | 9.094947018 × 10⁻¹³ TiB |
Frequently asked questions
How many kilobytes are in 1 byte?
1 B = 0.001 kB.
How do I convert bytes to kilobytes?
Multiply the value in B by 0.001, or divide it by 1000. For example, 15 B × 0.001 = 0.015 kB.
Is the B to kB conversion exact?
Yes. Both units are defined exactly, and 1 B is exactly 0.001 kB.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7 (SI prefixes); hertz, Table 4.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Bytes to Kilobytes (B to kB). Retrieved October 25, 2026, from https://scientificconverters.com/data-storage/bytes-to-kilobytes/
IEEE
Scientific Converters, "Convert Bytes to Kilobytes (B to kB)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/data-storage/bytes-to-kilobytes/