2023-10-21 00:00:00 PTI "Transform"er calculates electrical transformer current, phase voltage, efficiency & regulation at various loads and power factors and provides SI/Metric conversions for Speed, Force, Power, Area, Pressure, Volume, Temperature, Weights & Measures. A handy calculator for determining ship date from any date using weeks after order (ARO) is also included. Interesting facts about PTI and what we do appear as you navigate through the application. Disclaimer: All conversions if used for critical calculations should be verified with a secondary source.