Use this useful tool to convert radiation activity choosing one of the 16 units of measurment included in this app (with the availability to add custom units), that are:
becquerel, terabecquerel, gigabecquerel, megabecquerel, kilobecquerel, millibecquerel, curie, kilocurie, millicurie, microcurie, nanocurie, picocurie, rutherford, one/second, disintegrations/minute, disintegrations/second.