Calculate your business mileage or even your mortgage payments with the Windows 7 calculator.

The reliable Calculator applet has been 'beefed up' to do more than just basic arithmetic. You can now toggle between Standard, Scientific, Programmer, and even Statistics modes. In addition, the Options menu lets you pull out many new automated conversation tools, such as Unit Conversion (e.g., Angles, Temperature, Velocity, and Volume) and Date Calculation (e.g., calculate the difference between two dates). More templates give you the ability to crunch gas mileage, lease tipping points, and even mortgage estimates based on any variables you input.