This calculator has been used to calculate simpler and some basic calculations like Ampere, power etc single and three phase motors. It helps you to these calculation whenever you will be out of your office. Also It will help you to get to know which HP rating motor has which NEMA frame size, according to that you find out major dimensions of the motor. Currently application has the following facilities: 1) Ampere and power calculator 2) NEMA & IEC dimension for motors 3) HP rating based NEMA &