Radioactivity
kBqtoµCi
Convert kilobecquerels (kBq) to microcuries (µCi).
Factor1 kBq = 0.02702703 µCi
Converter
kBq
Accepts numbers or expressions, e.g. 150 + 14.7
Result
µCi
Rendered to 6 significant figures.
Formula
Formula
µCi = kBq × 0.02702703
Multiply any value in kilobecquerels by 0.02702703 to obtain the value in microcuries.
Worked example
Convert 1 kBq to µCi.
- 01Start with 1 kBq.
- 02Multiply by the conversion factor: 1 × 0.02702703 = 0.027027 µCi.
Result1 kBq = 0.027027 µCi
Conversion table
| kBq | µCi |
|---|---|
| 1 | 0.027027 |
| 2 | 0.054054 |
| 5 | 0.13514 |
| 10 | 0.27027 |
| 20 | 0.54054 |
| 50 | 1.3514 |
| 100 | 2.7027 |
| 200 | 5.4054 |
| 500 | 13.514 |
| 1000 | 27.027 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from kBq to µCi?
1 kBq equals 0.02702703 µCi. To convert, multiply the value in kilobecquerels by 0.02702703.
How do I convert 1 kBq to µCi?
1 kBq = 0.027027 µCi. For any value, multiply by 0.02702703.
How do I convert µCi back to kBq?
Divide by the same factor — or equivalently, multiply by 37. So 1 µCi = 37 kBq.
When would I need to convert kilobecquerel to microcurie?
Radioactivity (activity) conversions between kBq and µCi 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).