Convert Rutherfords to Microcuries (Rd to µCi)
1 rutherford (Rd) = 27.02702703 microcuries (µCi). 1 µCi = 0.037 Rd. Example: 15 Rd = 15 × 27.02702703 = 405.4054054 µCi.
Also searched as rutherfords to µCi, rutherfords in µCi, rutherfords into microcuries, Rd to µCi, Rd in microcuries, Rd into microcurie, rutherford to microcurie, Rd to microcuries converter and how many microcuries in a rutherford.
1 Rd = 27.02702703 µCi
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk rutherford to microcurie converter to paste a column from Excel.
How to Convert Rutherford to Microcurie
- 1 Rd = 27.02702703 µCi
- 1 µCi = 0.037 Rd
- Example: convert 15 Rd to µCi: 15 Rd = 15 × 27.02702703 µCi = 405.4054054 µCi
Formula
µCi = Rd × 27.02702702703
Derivation from SI units:
- 1 Rd = 10⁶ Bq (obsolete).
- 1 µCi = 3.7 × 10⁴ Bq = 37 kBq.
- 1 Rd = 1000000 Bq ÷ 37000 Bq per µCi = 27.02702702703 µCi
Both units are defined exactly, so the factor is exact. Rutherford definition: rutherford; Microcurie definition: microcurie.
Worked examples
- A reading of 2 Rd converts to 54.05405405 µCi.
2 Rd × 27.02702703 = 54.05405405 µCi - A value of 20 Rd is 540.5405405 µCi.
20 Rd × 27.02702703 = 540.5405405 µCi
Rutherford to Microcurie conversion table
| Rutherfords (Rd) | Microcuries (µCi) |
|---|---|
| 0.1 Rd | 2.702702703 µCi |
| 0.5 Rd | 13.51351351 µCi |
| 1 Rd | 27.02702703 µCi |
| 2 Rd | 54.05405405 µCi |
| 5 Rd | 135.1351351 µCi |
| 10 Rd | 270.2702703 µCi |
| 20 Rd | 540.5405405 µCi |
| 50 Rd | 1351.351351 µCi |
| 100 Rd | 2702.702703 µCi |
| 1000 Rd | 27027.02703 µCi |
Where it's used
Rutherfords are used for older nuclear physics literature, while microcuries appear in check and calibration sources. 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 microcurie | 27.02702703 µCi |
| rutherford to becquerel | 1000000 Bq |
| rutherford to curie | 0.00002702702703 Ci |
| rutherford to megabecquerel | 1 MBq |
| rutherford to millicurie | 0.02702702703 mCi |
| rutherford to picocurie | 27027027.03 pCi |
| rutherford to kilobecquerel | 1000 kBq |
| rutherford to gigabecquerel | 0.001 GBq |
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 microcuries are in 1 rutherford?
1 Rd = 27.02702703 µCi.
How do I convert rutherfords to microcuries?
Multiply the value in Rd by 27.02702703. For example, 15 Rd × 27.02702703 = 405.4054054 µCi.
Is the Rd to µCi 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 Microcuries (Rd to µCi). Retrieved October 25, 2026, from https://scientificconverters.com/radioactivity/rutherfords-to-microcuries/
IEEE
Scientific Converters, "Convert Rutherfords to Microcuries (Rd to µCi)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/radioactivity/rutherfords-to-microcuries/