Radioactivity
dpmtoBq
Convert disintegrations per minute (dpm) to becquerels (Bq).
Factor1 dpm = 0.01666667 Bq
Converter
dpm
Accepts numbers or expressions, e.g. 150 + 14.7
Result
Bq
Rendered to 6 significant figures.
Formula
Formula
Bq = dpm × 0.01666667
Multiply any value in disintegrations per minute by 0.01666667 to obtain the value in becquerels.
Worked example
Convert 1000 dpm to Bq.
- 01Start with 1000 dpm.
- 02Multiply by the conversion factor: 1000 × 0.01666667 = 16.6667 Bq.
Result1000 dpm = 16.6667 Bq
Conversion table
| dpm | Bq |
|---|---|
| 1 | 0.016667 |
| 2 | 0.033333 |
| 5 | 0.083333 |
| 10 | 0.16667 |
| 20 | 0.33333 |
| 50 | 0.83333 |
| 100 | 1.6667 |
| 200 | 3.3333 |
| 500 | 8.3333 |
| 1000 | 16.667 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from dpm to Bq?
1 dpm equals 0.01666667 Bq. To convert, multiply the value in disintegrations per minute by 0.01666667.
How do I convert 1 dpm to Bq?
1 dpm = 0.0166667 Bq. For any value, multiply by 0.01666667.
How do I convert Bq back to dpm?
Divide by the same factor — or equivalently, multiply by 60. So 1 Bq = 60 dpm.
When would I need to convert disintegration per minute to becquerel?
Radioactivity (activity) conversions between dpm and Bq are routine in health physics, nuclear medicine ordering, environmental monitoring, radiopharmacy and reactor/accelerator-source documentation. The becquerel (Bq) is the SI unit; the curie (Ci) is the legacy unit (1 Ci ≡ 3.7×10¹⁰ Bq exactly). This category is strictly activity (decays per second) — it does NOT cover absorbed dose (Gy, rad), dose equivalent (Sv, rem), exposure or dose rate, all of which are different physical quantities and live in separate categories.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).