Radioactivity Converter
Convert between Becquerel, kilobecquerel, megabecquerel, Curie, and millicurie instantly.
Type in any field and the others update automatically.
Type in any field — the others update instantly.
All radioactivity conversions use Becquerels (Bq) as the base unit. One Becquerel equals one nuclear decay per second.
Metric prefixes:
- 1 kBq = 1,000 Bq
- 1 MBq = 1,000,000 Bq
Legacy unit (Curie):
- 1 Ci = 3.7 × 10¹⁰ Bq (37 billion Bq)
- 1 mCi = 37,000,000 Bq (37 MBq)
Common references:
- Human body: about 7,000 Bq (from potassium-40)
- Medical imaging scan: 100–700 MBq