Convert Rutherfords to DPM (Rd to dpm)
1 rutherford (Rd) = 60000000 disintegrations per minute (dpm). 1 dpm = 1.666666667 × 10⁻⁸ Rd. Example: 15 Rd = 15 × 60000000 = 900000000 dpm.
Also searched as rutherfords to dpm, rutherfords in dpm, rutherfords into disintegrations per minute, Rd to dpm, Rd in disintegrations per minute, Rd into disintegration per minute, rutherford to disintegration per minute, Rd to disintegrations per minute converter and how many disintegrations per minute in a rutherford.
1 Rd = 60000000 dpm
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk rutherford to disintegration per minute converter to paste a column from Excel.
How to Convert Rutherford to DPM
- 1 Rd = 60000000 dpm
- 1 dpm = 1.666666667 × 10⁻⁸ Rd
- Example: convert 15 Rd to dpm: 15 Rd = 15 × 60000000 dpm = 900000000 dpm
Formula
dpm = Rd × 60000000
Derivation from SI units:
- 1 Rd = 10⁶ Bq (obsolete).
- 1 dpm = 1/60 Bq.
- 1 Rd = 1000000 Bq ÷ 0.01666666666667 Bq per dpm = 60000000 dpm
Both units are defined exactly, so the factor is exact. Rutherford definition: rutherford; DPM definition: disintegration per minute.
Worked examples
- A reading of 2 Rd converts to 120000000 dpm.
2 Rd × 60000000 = 120000000 dpm - A value of 20 Rd is 1200000000 dpm.
20 Rd × 60000000 = 1200000000 dpm
Rutherford to DPM conversion table
| Rutherfords (Rd) | DPM |
|---|---|
| 0.1 Rd | 6000000 dpm |
| 0.5 Rd | 30000000 dpm |
| 1 Rd | 60000000 dpm |
| 2 Rd | 120000000 dpm |
| 5 Rd | 300000000 dpm |
| 10 Rd | 600000000 dpm |
| 20 Rd | 1200000000 dpm |
| 50 Rd | 3000000000 dpm |
| 100 Rd | 6000000000 dpm |
| 1000 Rd | 60000000000 dpm |
Where it's used
Rutherfords are used for older nuclear physics literature, while disintegrations per minute appear in wipe tests and contamination surveys. 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 disintegration per minute | 60000000 dpm |
| 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 microcurie | 27.02702703 µCi |
|---|---|
| rutherford to terabecquerel | 0.000001 TBq |
| rutherford to nanocurie | 27027.02703 nCi |
Frequently asked questions
How many disintegrations per minute are in 1 rutherford?
1 Rd = 60000000 dpm.
How do I convert rutherfords to disintegrations per minute?
Multiply the value in Rd by 60000000. For example, 15 Rd × 60000000 = 900000000 dpm.
Is the Rd to dpm 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 DPM (Rd to dpm). Retrieved October 25, 2026, from https://scientificconverters.com/radioactivity/rutherfords-to-dpm/
IEEE
Scientific Converters, "Convert Rutherfords to DPM (Rd to dpm)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/radioactivity/rutherfords-to-dpm/