The byte
A byte is 8 bits — the smallest addressable unit on virtually every modern computer. ASCII text is one byte per character; UTF-8 ranges from 1 to 4 bytes per character.
Bytes to Kilobytes Converter
1 B = 0.001 kB
1 byte equals 0.001 kilobytes. To convert bytes to kilobytes, multiply the byte value by 0.001. For quick reference: 1 B = 0.001 kB, 5 B = 0.005 kB, 10 B = 0.01 kB, 100 B = 0.1 kB.
Formula
Kilobytes = Bytes × 0.001Quick
How to convert bytes to kilobytes
Take your value
Start with your value in bytes.
Multiply by 0.001
Multiply the byte value by 0.001. This is the exact conversion factor from bytes to kilobytes.
Read the result
The product is your value in kilobytes. For example, 5 B × 0.001 = 0.005 kB.
Conversion formula
The exact factor from bytes to kilobytes is 0.001.
Kilobytes = Bytes × 0.001
Bytes to Kilobytes conversion table
Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.
| Bytes (B) | Kilobytes (kB) |
|---|---|
| 1 B | 0.001 kB |
| 8 B | 0.008 kB |
| 16 B | 0.016 kB |
| 64 B | 0.064 kB |
| 100 B | 0.1 kB |
| 256 B | 0.256 kB |
| 500 B | 0.5 kB |
| 512 B | 0.512 kB |
| 1000 B | 1 kB |
| 1024 B | 1.024 kB |
| 2000 B | 2 kB |
| 2048 B | 2.048 kB |
| 4096 B | 4.096 kB |
| 5000 B | 5 kB |
| 8192 B | 8.192 kB |
| 10000 B | 10 kB |
| 16384 B | 16.384 kB |
| 25000 B | 25 kB |
| 32768 B | 32.768 kB |
| 50000 B | 50 kB |
| 65536 B | 65.536 kB |
| 100000 B | 100 kB |
| 131072 B | 131.07 kB |
| 250000 B | 250 kB |
| 500000 B | 500 kB |
| 524288 B | 524.29 kB |
| 1000000 B | 1000 kB |
| 1048576 B | 1048.6 kB |
| 2000000 B | 2000 kB |
| 5000000 B | 5000 kB |
| 10000000 B | 10000 kB |
| 50000000 B | 50000 kB |
| 100000000 B | 100000 kB |
| 500000000 B | 500000 kB |
| 1000000000 B | 1000000 kB |
| 2000000000 B | 2000000 kB |
| 5000000000 B | 5000000 kB |
| 10000000000 B | 10000000 kB |
| 50000000000 B | 50000000 kB |
| 100000000000 B | 100000000 kB |
| 500000000000 B | 500000000 kB |
| 1000000000000 B | 1000000000 kB |
| 2000000000000 B | 2000000000 kB |
| 5000000000000 B | 5000000000 kB |
| 10000000000000 B | 10000000000 kB |
| 100000000000000 B | 100000000000 kB |
| 1000000000000000 B | 1000000000000 kB |
| 10000000000000000 B | 10000000000000 kB |
| 100000000000000000 B | 100000000000000 kB |
| 1000000000000000000 B | 1.0000 × 10^15 kB |
Real-world reference
A single ASCII character is 1 byte. A small SVG icon is around 1 kB.
Frequently asked questions
- How many kilobytes are in 1 byte?
- 1 byte equals 0.001 kilobytes.
- How do I convert bytes to kilobytes?
- Multiply the byte value by 0.001. So x B × 0.001 = the equivalent in kB.
- What is 5 bytes in kilobytes?
- 5 bytes equals 0.005 kilobytes.
- What is 10 bytes in kilobytes?
- 10 bytes equals 0.01 kilobytes.
- What is 100 bytes in kilobytes?
- 100 bytes equals 0.1 kilobytes.
- How do I convert back from kilobytes to bytes?
- Multiply the kilobyte value by 1000. For example, 1 kB = 1000 B.
- Is the byte bigger than the kilobyte?
- No. 1 byte is smaller than 1 kilobyte. It takes 1000 bytes to equal 1 kilobyte.
- Are these conversion factors exact?
- Yes. The factor of 0.001 is derived directly from the SI definitions of byte and kilobyte.
About the byte and the kilobyte
The kilobyte
The kilobyte (kB) equals exactly 1,000 bytes in the SI/IEC decimal convention. Most modern OS file managers and storage-vendor marketing use this definition. Older operating systems (Windows up to Vista) used 1 kB = 1,024 B — that value is now strictly called the kibibyte (KiB).