Measurement calculator that can be used to convert Watt hour to Petajoule, among others: 1 Watt hour [Wh] = 0.000 000 000 003 6 Petajoule [PJ]
Convert Watt hour to Petajoule:Choose the right category from the selection list, in this case 'Energy'. Next enter the value you want to convert. From the selection list, choose the unit that corresponds to the value you want to convert, in this case 'Watt hour [Wh]'. Finally choose the unit you want the value to be converted to, in this case 'Petajoule [PJ]'.