Convert Picocuries to Microcuries (pCi to µCi)
1 picocurie (pCi) = 0.000001 microcuries (µCi). 1 µCi = 1000000 pCi. Example: 15 pCi = 15 × 0.000001 = 0.000015 µCi.
Also searched as picocuries to µCi, picocuries in µCi, picocuries into microcuries, pCi to µCi, pCi in microcuries, pCi into microcurie, picocurie to microcurie, pCi to microcuries converter and how many microcuries in a picocurie.
1 pCi = 0.000001 µCi
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk picocurie to microcurie converter to paste a column from Excel.
How to Convert Picocurie to Microcurie
- 1 pCi = 0.000001 µCi
- 1 µCi = 1000000 pCi
- Example: convert 15 pCi to µCi: 15 pCi = 15 × 0.000001 µCi = 0.000015 µCi
Formula
µCi = pCi ÷ 1000000
Derivation from SI units:
- 1 pCi = 0.037 Bq.
- 1 µCi = 3.7 × 10⁴ Bq = 37 kBq.
- 1 pCi = 0.037 Bq ÷ 37000 Bq per µCi = 0.000001 µCi
Both units are defined exactly, so the factor is exact. Picocurie definition: picocurie; Microcurie definition: microcurie.
Worked examples
- A reading of 4 pCi converts to 0.000004 µCi.
4 pCi × 0.000001 = 0.000004 µCi - A value of 20 pCi is 0.00002 µCi.
20 pCi × 0.000001 = 0.00002 µCi
Picocurie to Microcurie conversion table
| Picocuries (pCi) | Microcuries (µCi) |
|---|---|
| 0.4 pCi | 4 × 10⁻⁷ µCi |
| 1 pCi | 0.000001 µCi |
| 2 pCi | 0.000002 µCi |
| 4 pCi | 0.000004 µCi |
| 8 pCi | 0.000008 µCi |
| 10 pCi | 0.00001 µCi |
| 20 pCi | 0.00002 µCi |
| 50 pCi | 0.00005 µCi |
| 100 pCi | 0.0001 µCi |
| 1000 pCi | 0.001 µCi |
Where it's used
Picocuries are used for radon in homes (pCi/L), while microcuries appear in check and calibration sources. Both measure activity of a radioactive source, so the conversion is a fixed factor.
Picocurie to other radioactivity units
| Conversion | 1 pCi equals |
|---|---|
| picocurie to microcurie | 0.000001 µCi |
| picocurie to becquerel | 0.037 Bq |
| picocurie to curie | 1 × 10⁻¹² Ci |
| picocurie to megabecquerel | 3.7 × 10⁻⁸ MBq |
| picocurie to millicurie | 1 × 10⁻⁹ mCi |
| picocurie to kilobecquerel | 0.000037 kBq |
| picocurie to gigabecquerel | 3.7 × 10⁻¹¹ GBq |
| picocurie to disintegration per minute | 2.22 dpm |
Show 3 more units
| picocurie to terabecquerel | 3.7 × 10⁻¹⁴ TBq |
|---|---|
| picocurie to nanocurie | 0.001 nCi |
| picocurie to rutherford | 3.7 × 10⁻⁸ Rd |
Frequently asked questions
How many microcuries are in 1 picocurie?
1 pCi = 0.000001 µCi.
How do I convert picocuries to microcuries?
Multiply the value in pCi by 0.000001, or divide it by 1000000. For example, 15 pCi × 0.000001 = 0.000015 µCi.
Is the pCi to µCi conversion exact?
Yes. Both units are defined exactly, and 1 pCi is exactly 0.000001 µCi.
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "curie".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Picocuries to Microcuries (pCi to µCi). Retrieved October 25, 2026, from https://scientificconverters.com/radioactivity/picocuries-to-microcuries/
IEEE
Scientific Converters, "Convert Picocuries to Microcuries (pCi to µCi)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/radioactivity/picocuries-to-microcuries/