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Kilobytes to Bytes (KB to B)
Convert kilobytes to bytes: 1 KB = 1000 B. Exact conversion factor, formula, 18-row table and worked examples, with JSON API and MCP access.
Formula
1 KB = 1000 B
bytes = kilobytes × 1000 — reverse: kilobytes = bytes × 0.001
The factor is derived from the SI definitions of both units (base unit: B) as listed in NIST SP 811; results on this page are shown to 6 significant figures, the API returns up to 12.
Worked examples
- 1.5 KB = 1500 B
- 700 KB = 700000 B
- 2048 KB = 2048000 B
Kilobytes to bytes conversion table
| Kilobytes (KB) | Bytes (B) |
|---|---|
| 1 | 1000 |
| 2 | 2000 |
| 4 | 4000 |
| 8 | 8000 |
| 16 | 16000 |
| 32 | 32000 |
| 64 | 64000 |
| 100 | 100000 |
| 128 | 128000 |
| 256 | 256000 |
| 500 | 500000 |
| 512 | 512000 |
| 1000 | 1000000 |
| 1024 | 1024000 |
| 2048 | 2048000 |
| 4096 | 4096000 |
| 8192 | 8192000 |
| 10000 | 10000000 |
FAQ
How many bytes are in one kilobyte?
1 KB = 1000 B. The factor comes from the SI definitions of both units (NIST SP 811 / BIPM), so it is exact or correct to at least 10 significant figures.
What is the formula to convert kilobytes to bytes?
Multiply the value in kilobytes by 1000: bytes = kilobytes × 1000. For example, 1.5 KB = 1500 B.
How do I convert bytes back to kilobytes?
Multiply by the inverse factor 0.001 (kilobytes = bytes × 0.001), or use the bytes-to-kilobytes page.
Related conversions
Machine access
- API:
GET https://tttkmbb.com/api/v1/convert?value=1.5&from_unit=KB&to_unit=B - MCP: server
https://tttkmbb.com/mcp, toolconvert_unitswith{"value":1.5,"from_unit":"KB","to_unit":"B"} - Markdown: https://tttkmbb.com/conversion/kb-to-bytes.md · JSON: https://tttkmbb.com/conversion/kb-to-bytes.json (add
?value=for a result) · Units: /api/v1/units?quantity=data-storage - OpenAPI operationId:
convert_units. Freshness:static. Authentication: none.