Handy and useful expression calculator and unit converter with skins. Main features: fully customizable interface with skins; keyboard shortcuts; all arithmetic operations, more than 20 functions; editable lists of constants and unit conversions; recalling previously used expressions; five result formats with changeable precision; automatic clipboard copy/paste; minimizes to the system tray.

KMB Electrical Calculator
Calculates tons of formulas used in an electrical environment; Ohms, volts, amps, horsepower, etc.

Length Area Price calculator
Land price calculator software calculates property house flat plots price estimate real estate lands dealing purchasing and selling. Utility also convert length area to and from hectare acre square meter centimeter inches feet yards miles furlongs

EuroCalc
Easy free small Calculator and Euro converter. Stay on top, remove conversion and remove keyboard options.

Euro Calculator
Four packages in one: calculator with translucent skins, currency converter, internet agent that collects daily rates, and promotional medium (via custom redistributable versions). Calculator and euro conversion functionality never expire (freeware).

AP-OCS
The objective of cutting optimization software vary from minimizing the size of rectangular sheet or maximizing the number of parts in the sheet.