Radioactivity
BqtokBq
Convert becquerels (Bq) to kilobecquerels (kBq).
Factor1 Bq = 0.001 kBq
Converter
Bq
Accepts numbers or expressions, e.g. 150 + 14.7
Result
kBq
Rendered to 6 significant figures.
Formula
Formula
kBq = Bq × 0.001
Multiply any value in becquerels by 0.001 to obtain the value in kilobecquerels.
Worked example
Convert 10000 Bq to kBq.
- 01Start with 10000 Bq.
- 02Multiply by the conversion factor: 10000 × 0.001 = 10 kBq.
Result10000 Bq = 10 kBq
Conversion table
| Bq | kBq |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 50 | 0.05 |
| 100 | 0.1 |
| 200 | 0.2 |
| 500 | 0.5 |
| 1000 | 1 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from Bq to kBq?
1 Bq equals 0.001 kBq. To convert, multiply the value in becquerels by 0.001.
How do I convert 1 Bq to kBq?
1 Bq = 0.001 kBq. For any value, multiply by 0.001.
How do I convert kBq back to Bq?
Divide by the same factor — or equivalently, multiply by 1000. So 1 kBq = 1000 Bq.
When would I need to convert becquerel to kilobecquerel?
Radioactivity (activity) conversions between Bq and kBq are routine in health physics, nuclear medicine ordering, environmental monitoring, radiopharmacy and reactor/accelerator-source documentation. The becquerel (Bq) is the SI unit; the curie (Ci) is the legacy unit (1 Ci ≡ 3.7×10¹⁰ Bq exactly). This category is strictly activity (decays per second) — it does NOT cover absorbed dose (Gy, rad), dose equivalent (Sv, rem), exposure or dose rate, all of which are different physical quantities and live in separate categories.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).