Electrical Calculations is a free Android app developed by Oskars Cinovskis that aims to provide a comprehensive tool for electrical and electronics engineering graduates and students. The app contains a vast range of calculations and conversions, including voltage, current, power, efficiency, resistor/capacitor/inductor combinations, resonant frequency, reactance, and many others. It also features resistor, inductor, and resistance color coding, as well as single/three-phase active/reactive/apparent power, peak/RMS conversion, watts to horsepower conversion, power factor calculations, transformer calculations, lighting calculations, cable calculations, and more.

The app is straightforward to use. Just enter the required values, and the app will provide you with the results. Additionally, the formulas used in the calculations are displayed for reference. The app's features and calculations are well-organized and easy to navigate, making it an ideal tool for electrical and electronics engineering students and professionals alike.

Overall, Electrical Calculations is a comprehensive tool that provides a vast range of calculations and conversions for electrical and electronics engineering students and professionals. The app is easy to use, well-organized, and contains all the necessary features to make it an essential tool for anyone studying or working in the electrical and electronics engineering field.