Convert Picocuries to DPM (pCi to dpm)
1 picocurie (pCi) = 2.22 disintegrations per minute (dpm). 1 dpm = 0.4504504505 pCi. Example: 15 pCi = 15 × 2.22 = 33.3 dpm.
Also searched as picocuries to dpm, picocuries in dpm, picocuries into disintegrations per minute, pCi to dpm, pCi in disintegrations per minute, pCi into disintegration per minute, picocurie to disintegration per minute, pCi to disintegrations per minute converter and how many disintegrations per minute in a picocurie.
1 pCi = 2.22 dpm
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk picocurie to disintegration per minute converter to paste a column from Excel.
How to Convert Picocurie to DPM
- 1 pCi = 2.22 dpm
- 1 dpm = 0.4504504505 pCi
- Example: convert 15 pCi to dpm: 15 pCi = 15 × 2.22 dpm = 33.3 dpm
Formula
dpm = pCi × 2.22
Derivation from SI units:
- 1 pCi = 0.037 Bq.
- 1 dpm = 1/60 Bq.
- 1 pCi = 0.037 Bq ÷ 0.01666666666667 Bq per dpm = 2.22 dpm
Both units are defined exactly, so the factor is exact. Picocurie definition: picocurie; DPM definition: disintegration per minute.
Worked examples
- A reading of 4 pCi converts to 8.88 dpm.
4 pCi × 2.22 = 8.88 dpm - A value of 20 pCi is 44.4 dpm.
20 pCi × 2.22 = 44.4 dpm
Picocurie to DPM conversion table
| Picocuries (pCi) | DPM |
|---|---|
| 0.4 pCi | 0.888 dpm |
| 1 pCi | 2.22 dpm |
| 2 pCi | 4.44 dpm |
| 4 pCi | 8.88 dpm |
| 8 pCi | 17.76 dpm |
| 10 pCi | 22.2 dpm |
| 20 pCi | 44.4 dpm |
| 50 pCi | 111 dpm |
| 100 pCi | 222 dpm |
| 1000 pCi | 2220 dpm |
Where it's used
Picocuries are used for radon in homes (pCi/L), 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.
Picocurie to other radioactivity units
| Conversion | 1 pCi equals |
|---|---|
| picocurie to disintegration per minute | 2.22 dpm |
| 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 microcurie | 0.000001 µCi |
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 disintegrations per minute are in 1 picocurie?
1 pCi = 2.22 dpm.
How do I convert picocuries to disintegrations per minute?
Multiply the value in pCi by 2.22. For example, 15 pCi × 2.22 = 33.3 dpm.
Is the pCi to dpm conversion exact?
Yes. Both units are defined exactly, and 1 pCi is exactly 2.22 dpm.
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 DPM (pCi to dpm). Retrieved October 25, 2026, from https://scientificconverters.com/radioactivity/picocuries-to-dpm/
IEEE
Scientific Converters, "Convert Picocuries to DPM (pCi to dpm)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/radioactivity/picocuries-to-dpm/