TL:DR; Calculate the percentage of any number out of any number.
Calculate the percentage of any number out of any number.Great little tool to have on hand.
Lite version converts several units of length. Plus version converts length, weight and capacity measures. By typing a number into box provided will instantly display the results without the user having to search through a confusing menu of choices.
Handy and useful expression calculator and converter with skins and lots of features
Rt-Plot is a tool to generate Cartesian X/Y-plots from scientific data. You can enter and calculate tabular data. View the changing graphs, including linear and non linear regression, interpolation, differentiation and integration, during entering.