Microsoft Calculator Plus

From Microsoft: This application allows you to complete many different types of conversions; it also includes all the mathematical functions offered in Microsoft Calculator. Use of the Microsoft Calculator Plus ("Calculator") is completely voluntary on the part of the end user. The information, calculations and/or conversion estimations generated from use of the Calculator are for informational purposes only and Microsoft makes no warranties, express or implied, with respect to the Calculator or the accuracy of any information, calculations or conversion estimations generated as a result of its usage.