Radioactivity
dpmtokBq
Convert disintegrations per minute (dpm) to kilobecquerels (kBq).
Factor1 dpm = 1.666667e-5 kBq
Converter
dpm
Accepts numbers or expressions, e.g. 150 + 14.7
Result
kBq
Rendered to 6 significant figures.
Formula
Formula
kBq = dpm × 1.666667e-5
Multiply any value in disintegrations per minute by 1.666667e-5 to obtain the value in kilobecquerels.
Worked example
Convert 1.00000e+6 dpm to kBq.
- 01Start with 1.00000e+6 dpm.
- 02Multiply by the conversion factor: 1.00000e+6 × 1.666667e-5 = 16.6667 kBq.
Result1.00000e+6 dpm = 16.6667 kBq
Conversion table
| dpm | kBq |
|---|---|
| 1 | 1.6667e-5 |
| 2 | 3.3333e-5 |
| 5 | 8.3333e-5 |
| 10 | 0.00016667 |
| 20 | 0.00033333 |
| 50 | 0.00083333 |
| 100 | 0.0016667 |
| 200 | 0.0033333 |
| 500 | 0.0083333 |
| 1000 | 0.016667 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from dpm to kBq?
1 dpm equals 1.666667e-5 kBq. To convert, multiply the value in disintegrations per minute by 1.666667e-5.
How do I convert 1 dpm to kBq?
1 dpm = 1.66667e-5 kBq. For any value, multiply by 1.666667e-5.
How do I convert kBq back to dpm?
Divide by the same factor — or equivalently, multiply by 60000. So 1 kBq = 60000 dpm.
When would I need to convert disintegration per minute to kilobecquerel?
Radioactivity (activity) conversions between dpm and kBq 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).