A compact, easy-to-use unit conversion program, converts almost all units, covering approx. 280 units of 30 unit groups. Also enables conversions between binary, octal, hexadecimal and decimal numbers. Will answer the purpose of really practical use for engineers, students and those who have the necessity to convert various units easily and quickly. When you choose the reduced 'button' window, it takes up only a small space on the Desktop. The user-definition feature allows you to add your favorite unit groups of which format is [Unit 1] = [Constant A] * ([Unit 2] +[Constant B]). The attached calculator enables fundamental and functional calculations using converted results, or vice versa. The units include old Chinese and Japanese quantities, and numerals from 10E-24 to 10E+88.