Convert DPM to Megabecquerels (dpm to MBq)
1 disintegration per minute (dpm) = 1.666666667 × 10⁻⁸ megabecquerels (MBq). 1 MBq = 60000000 dpm. Example: 15 dpm = 15 × 1.666666667 × 10⁻⁸ = 2.5 × 10⁻⁷ MBq.
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1 dpm = 1.666666667e-8 MBq
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk disintegration per minute to megabecquerel converter to paste a column from Excel.
How to Convert DPM to Megabecquerel
- 1 dpm = 1.666666667 × 10⁻⁸ MBq
- 1 MBq = 60000000 dpm
- Example: convert 15 dpm to MBq: 15 dpm = 15 × 1.666666667 × 10⁻⁸ MBq = 2.5 × 10⁻⁷ MBq
Formula
MBq = dpm × 1.666666666667 × 10⁻⁸
or MBq = dpm ÷ 60000000
Derivation from SI units:
- 1 dpm = 1/60 Bq.
- 1 MBq = 10⁶ Bq.
- 1 dpm = 0.01666666666667 Bq ÷ 1000000 Bq per MBq = 1.666666666667 × 10⁻⁸ MBq
Both units are defined exactly, so the factor is exact. DPM definition: disintegration per minute; Megabecquerel definition: megabecquerel.
Worked examples
- A reading of 600 dpm converts to 0.00001 MBq.
600 dpm × 1.666666667 × 10⁻⁸ = 0.00001 MBq - A value of 6000 dpm is 0.0001 MBq.
6000 dpm × 1.666666667 × 10⁻⁸ = 0.0001 MBq
DPM to Megabecquerel conversion table
| DPM | Megabecquerels (MBq) |
|---|---|
| 60 dpm | 0.000001 MBq |
| 100 dpm | 0.000001666666667 MBq |
| 220 dpm | 0.000003666666667 MBq |
| 600 dpm | 0.00001 MBq |
| 1000 dpm | 0.00001666666667 MBq |
| 2220 dpm | 0.000037 MBq |
| 6000 dpm | 0.0001 MBq |
| 10000 dpm | 0.0001666666667 MBq |
| 60000 dpm | 0.001 MBq |
| 100000 dpm | 0.001666666667 MBq |
Where it's used
DPM are used for wipe tests and contamination surveys, while megabecquerels appear in PET and SPECT doses (e.g. 370 MBq of F-18 FDG). 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 megabecquerel | 1.666666667 × 10⁻⁸ MBq |
| disintegration per minute to becquerel | 0.01666666667 Bq |
| disintegration per minute to curie | 4.504504505 × 10⁻¹³ Ci |
| 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 megabecquerels are in 1 disintegration per minute?
1 dpm = 1.666666667 × 10⁻⁸ MBq.
How do I convert disintegrations per minute to megabecquerels?
Multiply the value in dpm by 1.666666667 × 10⁻⁸, or divide it by 60000000. For example, 15 dpm × 1.666666667 × 10⁻⁸ = 2.5 × 10⁻⁷ MBq.
Is the dpm to MBq 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 Megabecquerels (dpm to MBq). Retrieved October 25, 2026, from https://scientificconverters.com/radioactivity/dpm-to-megabecquerels/
IEEE
Scientific Converters, "Convert DPM to Megabecquerels (dpm to MBq)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/radioactivity/dpm-to-megabecquerels/