Use this useful tool to convert weight choosing one of the 22 units of measurment included in this app, that are:

Becquerel:
becquerel, petabecquerel, terabecquerel, gigabecquerel, megabecquerel, kilobecquerel, hectobecquerel, decabecquerel, decibecquerel, centibecquerel and millibecquerel

Curie:
kilocurie, hectocurie, decacurie, curie, decicurie, centicurie, millicurie, microcurie and picocurie

Other units:
rutherford and disintegrations per minute