Convert Rutherfords to Picocuries (Rd to pCi)
1 rutherford (Rd) = 27027027.03 picocuries (pCi). 1 pCi = 3.7 × 10⁻⁸ Rd. Example: 15 Rd = 15 × 27027027.03 = 405405405.4 pCi.
Also searched as rutherfords to pCi, rutherfords in pCi, rutherfords into picocuries, Rd to pCi, Rd in picocuries, Rd into picocurie, rutherford to picocurie, Rd to picocuries converter and how many picocuries in a rutherford.
1 Rd = 27027027.03 pCi
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk rutherford to picocurie converter to paste a column from Excel.
How to Convert Rutherford to Picocurie
- 1 Rd = 27027027.03 pCi
- 1 pCi = 3.7 × 10⁻⁸ Rd
- Example: convert 15 Rd to pCi: 15 Rd = 15 × 27027027.03 pCi = 405405405.4 pCi
Formula
pCi = Rd × 27027027.02703
Derivation from SI units:
- 1 Rd = 10⁶ Bq (obsolete).
- 1 pCi = 0.037 Bq.
- 1 Rd = 1000000 Bq ÷ 0.037 Bq per pCi = 27027027.02703 pCi
Both units are defined exactly, so the factor is exact. Rutherford definition: rutherford; Picocurie definition: picocurie.
Worked examples
- A reading of 2 Rd converts to 54054054.05 pCi.
2 Rd × 27027027.03 = 54054054.05 pCi - A value of 20 Rd is 540540540.5 pCi.
20 Rd × 27027027.03 = 540540540.5 pCi
Rutherford to Picocurie conversion table
| Rutherfords (Rd) | Picocuries (pCi) |
|---|---|
| 0.1 Rd | 2702702.703 pCi |
| 0.5 Rd | 13513513.51 pCi |
| 1 Rd | 27027027.03 pCi |
| 2 Rd | 54054054.05 pCi |
| 5 Rd | 135135135.1 pCi |
| 10 Rd | 270270270.3 pCi |
| 20 Rd | 540540540.5 pCi |
| 50 Rd | 1351351351 pCi |
| 100 Rd | 2702702703 pCi |
| 1000 Rd | 27027027030 pCi |
Where it's used
Rutherfords are used for older nuclear physics literature, while picocuries appear in radon in homes (pCi/L). Both measure activity of a radioactive source, so the conversion is a fixed factor.
Rutherford to other radioactivity units
| Conversion | 1 Rd equals |
|---|---|
| rutherford to picocurie | 27027027.03 pCi |
| rutherford to becquerel | 1000000 Bq |
| rutherford to curie | 0.00002702702703 Ci |
| rutherford to megabecquerel | 1 MBq |
| rutherford to millicurie | 0.02702702703 mCi |
| rutherford to kilobecquerel | 1000 kBq |
| rutherford to gigabecquerel | 0.001 GBq |
| rutherford to microcurie | 27.02702703 µCi |
Show 3 more units
| rutherford to disintegration per minute | 60000000 dpm |
|---|---|
| rutherford to terabecquerel | 0.000001 TBq |
| rutherford to nanocurie | 27027.02703 nCi |
Frequently asked questions
How many picocuries are in 1 rutherford?
1 Rd = 27027027.03 pCi.
How do I convert rutherfords to picocuries?
Multiply the value in Rd by 27027027.03. For example, 15 Rd × 27027027.03 = 405405405.4 pCi.
Is the Rd to pCi conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
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 Rutherfords to Picocuries (Rd to pCi). Retrieved October 25, 2026, from https://scientificconverters.com/radioactivity/rutherfords-to-picocuries/
IEEE
Scientific Converters, "Convert Rutherfords to Picocuries (Rd to pCi)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/radioactivity/rutherfords-to-picocuries/