Use this useful tool to convert absorbed dose choosing one of the 27 units of measurment included in this app, that are:
gray
kilogray
hectogray
decagray
decigray
centigray
milligray
microgray
nanogray
kilorad
hectorad
decarad
rad
decirad
centirad
millirad
microrad
nanorad
kilojoule/kilogram
hectojoule/kilogram
decajoule/kilogram
joule/kilogram
decijoule/kilogram
centijoule/kilogram
millijoule/kilogram
microjoule/kilogram
nanojoule/kilogram
For every units of measurment are also included formulas to convert that unit as you want.