Radioactivity
BqtopCi
Convert becquerels (Bq) to picocuries (pCi).
Factor1 Bq = 27.02703 pCi
Converter
Bq
Accepts numbers or expressions, e.g. 150 + 14.7
Result
pCi
Rendered to 6 significant figures.
Formula
Formula
pCi = Bq × 27.02703
Multiply any value in becquerels by 27.02703 to obtain the value in picocuries.
Worked example
Convert 10 Bq to pCi.
- 01Start with 10 Bq.
- 02Multiply by the conversion factor: 10 × 27.02703 = 270.27 pCi.
Result10 Bq = 270.27 pCi
Conversion table
| Bq | pCi |
|---|---|
| 1 | 27.027 |
| 2 | 54.054 |
| 5 | 135.14 |
| 10 | 270.27 |
| 20 | 540.54 |
| 50 | 1351.4 |
| 100 | 2702.7 |
| 200 | 5405.4 |
| 500 | 13514 |
| 1000 | 27027 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from Bq to pCi?
1 Bq equals 27.02703 pCi. To convert, multiply the value in becquerels by 27.02703.
How do I convert 1 Bq to pCi?
1 Bq = 27.027 pCi. For any value, multiply by 27.02703.
How do I convert pCi back to Bq?
Divide by the same factor — or equivalently, multiply by 0.037. So 1 pCi = 0.037 Bq.
When would I need to convert becquerel to picocurie?
Radioactivity (activity) conversions between Bq and pCi 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).