Convert DPM to Becquerels (dpm to Bq)
1 disintegration per minute (dpm) = 0.01666666667 becquerels (Bq). 1 Bq = 60 dpm. Example: 15 dpm = 15 × 0.01666666667 = 0.25 Bq.
Also searched as disintegrations per minute to Bq, disintegrations per minute in Bq, disintegrations per minute into becquerels, dpm to Bq, dpm in becquerels, dpm into becquerel, disintegration per minute to becquerel, dpm to becquerels converter and how many becquerels in a disintegration per minute.
1 dpm = 0.01666666667 Bq
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk disintegration per minute to becquerel converter to paste a column from Excel.
How to Convert DPM to Becquerel
- 1 dpm = 0.01666666667 Bq
- 1 Bq = 60 dpm
- Example: convert 15 dpm to Bq: 15 dpm = 15 × 0.01666666667 Bq = 0.25 Bq
Formula
Bq = dpm × 0.01666666666667
or Bq = dpm ÷ 60
Derivation from SI units:
- 1 dpm = 1/60 Bq.
- 1 Bq = 1 decay per second (s⁻¹).
Both units are defined exactly, so the factor is exact. DPM definition: disintegration per minute; Becquerel definition: becquerel.
Worked examples
- A reading of 600 dpm converts to 10 Bq.
600 dpm × 0.01666666667 = 10 Bq - A value of 6000 dpm is 100 Bq.
6000 dpm × 0.01666666667 = 100 Bq
DPM to Becquerel conversion table
| DPM | Becquerels (Bq) |
|---|---|
| 60 dpm | 1 Bq |
| 100 dpm | 1.666666667 Bq |
| 220 dpm | 3.666666667 Bq |
| 600 dpm | 10 Bq |
| 1000 dpm | 16.66666667 Bq |
| 2220 dpm | 37 Bq |
| 6000 dpm | 100 Bq |
| 10000 dpm | 166.6666667 Bq |
| 60000 dpm | 1000 Bq |
| 100000 dpm | 1666.666667 Bq |
Where it's used
DPM are used for wipe tests and contamination surveys, while becquerels appear in food and environmental radioactivity limits. Both measure activity of a radioactive source, so the conversion is a fixed factor.
DPM to other radioactivity units
| Conversion | 1 dpm equals |
|---|---|
| disintegration per minute to becquerel | 0.01666666667 Bq |
| disintegration per minute to curie | 4.504504505 × 10⁻¹³ Ci |
| disintegration per minute to megabecquerel | 1.666666667 × 10⁻⁸ MBq |
| disintegration per minute to millicurie | 4.504504505 × 10⁻¹⁰ mCi |
| disintegration per minute to picocurie | 0.4504504505 pCi |
| disintegration per minute to kilobecquerel | 0.00001666666667 kBq |
| disintegration per minute to gigabecquerel | 1.666666667 × 10⁻¹¹ GBq |
| disintegration per minute to microcurie | 4.504504505 × 10⁻⁷ µCi |
Show 3 more units
| disintegration per minute to terabecquerel | 1.666666667 × 10⁻¹⁴ TBq |
|---|---|
| disintegration per minute to nanocurie | 0.0004504504505 nCi |
| disintegration per minute to rutherford | 1.666666667 × 10⁻⁸ Rd |
Frequently asked questions
How many becquerels are in 1 disintegration per minute?
1 dpm = 0.01666666667 Bq.
How do I convert disintegrations per minute to becquerels?
Multiply the value in dpm by 0.01666666667, or divide it by 60. For example, 15 dpm × 0.01666666667 = 0.25 Bq.
Is the dpm to Bq 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".
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4 (becquerel, gray, sievert, lux) and Table 2 (candela).
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 DPM to Becquerels (dpm to Bq). Retrieved October 25, 2026, from https://scientificconverters.com/radioactivity/dpm-to-becquerels/
IEEE
Scientific Converters, "Convert DPM to Becquerels (dpm to Bq)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/radioactivity/dpm-to-becquerels/