Kilobytes to bytes
Type a value in kilobytes to see it in bytes straight away, or type in the second box to convert back.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Type the value in the kilobytes box.
- Read the result in bytes as you type, and pick the precision you need.
- Swap the direction to convert back, or copy the result.
How it is calculated
B = kB × 1,000
Multiply the value in kilobytes by 1,000 to get bytes.
Example
To convert 25 kB to bytes: 25 × 1,000 = 25,000 B.
Conversion table
| Kilobytes (kB) | Bytes (B) |
|---|---|
| 1 | 1,000 |
| 2 | 2,000 |
| 3 | 3,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 20 | 20,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 250 | 250,000 |
| 500 | 500,000 |
| 1,000 | 1,000,000 |
About the units
- Kilobyte
- A decimal (SI prefix) unit equal to exactly 1000 bytes. Not the same as the binary kibibyte, which is 1024 bytes.
- Byte
- A unit of storage equal to exactly 8 bits (an octet in IEC 80000-13), typically enough to store one Latin character.
Limits and caveats
- Results are rounded for display and computed with the browser's floating point precision (about 15 significant digits).
- Both unit factors are exact by their official definitions.
Questions about this tool
How many bytes are in one kilobyte?
1 kB = 1,000 B exactly.
How do I convert kilobytes to bytes?
Use B = kB × 1,000. For example, 25 kB = 25,000 B.
How many kilobytes are in one byte?
1 B = 0.001 kB.
Why does a 1 TB drive show about 931 GB on my computer?
Drive makers count 1 TB as 10^12 bytes, while Windows divides by 2^30 and labels the result GB even though it is really GiB. So 10^12 ÷ 1,073,741,824 gives about 931.32, and no space is missing.
What is the difference between a kilobyte and a kibibyte?
A kilobyte (kB) is a decimal unit of 1000 bytes and a kibibyte (KiB) is a binary unit of 1024 bytes. The same split applies to mega and mebi, giga and gibi, and the gap grows at each step.