Radiation Activity Converter Convert radiation activity values between Bq, kBq, MBq, GBq, and Ci. * Enter a value and select the units. Step 1: Enter Conversion Data Activity Value: From Unit: Becquerel (Bq) Kilobecquerel (kBq) Megabecquerel (MBq) Gigabecquerel (GBq) Curie (Ci) To Unit: Becquerel (Bq) Kilobecquerel (kBq) Megabecquerel (MBq) Gigabecquerel (GBq) Curie (Ci) Convert Activity Conversion Result Converted Value: New Conversion