Household Calculator has a convenient ergonomic design. Symbols can be entered by clicking buttons and/or using keyboard and num pad. Calculation history can be saved into text file and printed. There are options for technical and financial calculations. Household Calculator is a general purpose ergonomic calculator which combines use simplicity and calculation power. It handles main arithmetic operations with two operands, addition, subtraction, multiplication, division, and complex formulas with unlimited number of operations and operands. Ergonomic design allows easily navigate through controls and enter data using both mouse and keyboard.