Radiation - Activity Converter
Convert between different units of radioactivity (e.g., Becquerel, Curie)
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Common Conversions
About Radioactivity Units
Radioactivity (or activity) is the process by which an unstable atomic nucleus loses energy by radiation. The SI unit of activity is the Becquerel (Bq).
- Becquerel (Bq): $1 \text{ Bq} = 1$ disintegration per second (dps).
- Kilobecquerel (kBq): $1 \text{ kBq} = 10^3 \text{ Bq}$
- Megabecquerel (MBq): $1 \text{ MBq} = 10^6 \text{ Bq}$
- Gigabecquerel (GBq): $1 \text{ GBq} = 10^9 \text{ Bq}$
- Curie (Ci): An older unit, originally defined as the activity of one gram of radium-226.
$1 \text{ Ci} = 3.7 \times 10^{10} \text{ Bq}$.
- Millicurie (mCi): $1 \text{ mCi} = 3.7 \times 10^7 \text{ Bq}$
- Microcurie (µCi): $1 \text{ µCi} = 3.7 \times 10^4 \text{ Bq}$
- Nanocurie (nCi): $1 \text{ nCi} = 37 \text{ Bq}$
- Picocurie (pCi): $1 \text{ pCi} = 0.037 \text{ Bq}$
- Rutherford (Rd): Another older unit. $1 \text{ Rd} = 10^6 \text{ Bq} = 1 \text{ MBq}$.
- Disintegrations per second (dps): Equivalent to Becquerel. $1 \text{ dps} = 1 \text{ Bq}$.
- Disintegrations per minute (dpm): $1 \text{ dpm} = (1/60) \text{ Bq} \approx 0.016667 \text{ Bq}$.