Kilobytes to Bytes
Convert kilobytes (KB) to bytes (B) instantly — with formula and reference table.
KB
B
Quick answer: 1 KB = 1024 B. To convert kilobytes to bytes, multiply by KB × 1024.
Converting kilobytes to bytes
This converter changes a value in kilobytes (KB) into bytes (B). One kilobyte equals 1024 B. In the binary convention, one kilobyte equals 1024 bytes. The conversion runs entirely in your browser — enter a value and the result updates instantly, in either direction.
Formula
B = KB × 1024
Example
Convert 10 KB to B: 10 × 1024 = 10240 B.
Kilobytes to Bytes conversion table
| Kilobytes (KB) | Bytes (B) |
|---|---|
| 1 KB | 1024 B |
| 2 KB | 2048 B |
| 3 KB | 3072 B |
| 5 KB | 5120 B |
| 10 KB | 10240 B |
| 20 KB | 20480 B |
| 25 KB | 25600 B |
| 50 KB | 51200 B |
| 100 KB | 102400 B |
How to use this converter
- Enter a value in the kilobytes (KB) field.
- Read the converted value in bytes (B) below.
- Type into the B field instead to convert in reverse, or use the swap button.
Frequently asked questions
How many bytes are in a kilobyte?
1 KB equals 1024 bytes in the binary convention.
How do I convert 4 KB to bytes?
4 times 1024 = 4096 bytes.
What is a kibibyte?
A kibibyte (KiB) is explicitly 1024 bytes, the same value this converter uses for KB.