Basic calculator
Main Index and Search
Conversion between units index

This calc simulates a simple and basic pocket calculator, for those rare occasions where there's no exact calc to suit your needs!

Simply click out the expression you want to solve and then press "=". The whole expression will remain on screen until the calculation is performed. For anything more complex, see if there's a calc available somewhere else in CalcTool. The full list of calcs of the list of categories might be a good place to start. CalcTool has everything from mathematical and scientific functions to tax calculators and dress size checkers.