<Table> <Tr> <Th_colspan="2"> Electric potential energy </Th> </Tr> <Tr> <Th> Common symbols </Th> <Td> U </Td> </Tr> <Tr> <Th> SI unit </Th> <Td> joule (J) </Td> </Tr> <Tr> <Th> Derivations from other quantities </Th> <Td> U = C V / 2 </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Electric potential energy </Th> </Tr>

The si unit for electric potential energy is equivalent to