Convert Kilobytes to Bytes
One kilobyte equals 1,024 bytes. Type any value to convert kilobytes to bytes instantly — with a full reference table below.
Convert Kilobytes to Bytes
Converted in your browser — nothing you enter is sent anywhere.
How to convert Kilobytes to Bytes
To convert kilobytes to bytes, multiply by 1,024. One kilobyte equals 1,024 B, and one byte equals 0.000976562 KB.
- Take the value in kilobytes — for example 3 KB.
- Multiply by 1,024 (the number of bytes in one kilobyte).
- 3 × 1,024 = 3,072 B.
Quick mental estimate: Multiply the number of kilobytes by 1,024 — that is exact.
Kilobytes to Bytes conversion table
| Kilobytes | Bytes |
|---|---|
| 1 KB | 1,024 B |
| 2 KB | 2,048 B |
| 4 KB | 4,096 B |
| 5 KB | 5,120 B |
| 8 KB | 8,192 B |
| 10 KB | 10,240 B |
| 16 KB | 16,384 B |
| 20 KB | 20,480 B |
| 32 KB | 32,768 B |
| 50 KB | 51,200 B |
| 64 KB | 65,536 B |
| 100 KB | 102,400 B |
| 128 KB | 131,072 B |
| 256 KB | 262,144 B |
| 512 KB | 524,288 B |
| 1,024 KB | 1,048,576 B |
| Bytes | Kilobytes |
|---|---|
| 1 B | 0.000976562 KB |
| 2 B | 0.00195312 KB |
| 4 B | 0.00390625 KB |
| 5 B | 0.00488281 KB |
| 8 B | 0.0078125 KB |
| 10 B | 0.00976562 KB |
| 16 B | 0.015625 KB |
| 20 B | 0.0195312 KB |
| 32 B | 0.03125 KB |
| 50 B | 0.0488281 KB |
| 64 B | 0.0625 KB |
| 100 B | 0.0976562 KB |
| 128 B | 0.125 KB |
| 256 B | 0.25 KB |
| 512 B | 0.5 KB |
| 1,024 B | 1 KB |
About converting Kilobytes to Bytes
Kilobytes (KB) and Bytes (B) are both units of data storage. The exact factor is 1 KB = 1,024 B, so multiply by 1,024 to go from kilobytes to bytes (or divide to go back).
The conversion runs entirely in your browser. Need the reverse? Use the Bytes to Kilobytes converter, or the full unit converter for every unit at once.
Binary vs decimal: why your drive looks smaller
Windows and RAM reports count in powers of 1,024 (binary, sometimes written KiB/MiB/GiB); drive makers, macOS and mobile carriers count in powers of 1,000 (decimal). Same bytes, two answers:
| Kilobytes | Bytes (binary · Windows) | Bytes (decimal · on the box) |
|---|---|---|
| 1 KB | 1,024 B | 1,000 B |
| 2 KB | 2,048 B | 2,000 B |
| 4 KB | 4,096 B | 4,000 B |
| 5 KB | 5,120 B | 5,000 B |
| 8 KB | 8,192 B | 8,000 B |
| 10 KB | 10,240 B | 10,000 B |
| 16 KB | 16,384 B | 16,000 B |
| 20 KB | 20,480 B | 20,000 B |
| 32 KB | 32,768 B | 32,000 B |
| 50 KB | 51,200 B | 50,000 B |
Example: a “1 TB” drive holds 10¹² bytes, which Windows shows as about 931 GB.
Real-world data storage in kilobytes and bytes
| Example | Kilobytes | Bytes |
|---|---|---|
| A page of plain text | ≈ 1.953125 KB | ≈ 2,000 B |
| A 4-minute MP3 at 128 kbps | 3,750 KB | 3,840,000 B |
| A CD | 716,800 KB | 734,003,200 B |
“≈” marks typical values; the rest are defined or measured figures.
The units
Here, 1,024 bytes (binary, also written KiB). Decimal kilobyte = 1,000 bytes.
Used for: Small files, documents.
8 bits — enough to store one Latin character.
Used for: File sizes.
This page uses binary units (1 KB = 1,024 bytes), which is how Windows and most RAM reports count. Storage makers and macOS use decimal units (1 kB = 1,000 bytes), so both are shown below.