Radioactivity
µCitopCi
Convert microcuries (µCi) to picocuries (pCi).
Factor1 µCi = 1000000 pCi
Converter
µCi
Accepts numbers or expressions, e.g. 150 + 14.7
Result
pCi
Rendered to 6 significant figures.
Formula
Formula
pCi = µCi × 1000000
Multiply any value in microcuries by 1000000 to obtain the value in picocuries.
Worked example
Convert 1 µCi to pCi.
- 01Start with 1 µCi.
- 02Multiply by the conversion factor: 1 × 1000000 = 1.00000e+6 pCi.
Result1 µCi = 1.00000e+6 pCi
Conversion table
| µCi | pCi |
|---|---|
| 1 | 1.0000e+6 |
| 2 | 2.0000e+6 |
| 5 | 5.0000e+6 |
| 10 | 1e+7 |
| 20 | 2e+7 |
| 50 | 5e+7 |
| 100 | 1e+8 |
| 200 | 2e+8 |
| 500 | 5e+8 |
| 1000 | 1e+9 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from µCi to pCi?
1 µCi equals 1000000 pCi. To convert, multiply the value in microcuries by 1000000.
How do I convert 1 µCi to pCi?
1 µCi = 1.00000e+6 pCi. For any value, multiply by 1000000.
How do I convert pCi back to µCi?
Divide by the same factor — or equivalently, multiply by 1e-6. So 1 pCi = 1e-6 µCi.
When would I need to convert microcurie to picocurie?
Radioactivity (activity) conversions between µCi 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).