Convert 20 Horsepower hour to Joule: 20 Horsepower hour in Joule
This calculator allows you to convert from Horsepower hour to Joule and in a reverse direction. To convert from Horsepower hour to Joule, enter the amount of Horsepower hour into the first input and to convert from Joule to Horsepower hour, enter the amount of Joule into the second input.