Enter the quantity using a keypad on the screen or using the keyboard. Then use Simply Convert's pop-up menu system to quickly set the unit from 16 different unit categories: length, area, volume, time, temperature, speed, acceleration, mass, force, pressure, energy, power. Lastly, use the pop-up menu system to select the unit you want to convert to. Cut and Paste is supported. Simple to install. This is perhaps the simplest to use Unit Converter ever created. Uninstaller included.