Get Material Price from a diferent UM

Hello to all , i try to search in here similar questions but none of them where the same idea, i need to send material price but the master data is really mesy , an example could be , marerial 2021 is Base Unit Kg , but sales unit is in L but i need to send it in CB , 1 CB is 19 L etc , the price scales is represented in KG scales so is a real problem to send the data for what i need , is there any BAPI o Fm to put material and UM and get prices an Scales in what i need ??

Thanks in advance