In addition to providing easy access to billions of web pages, Google has many special features to help you to find exactly what you’re looking for.
Calculator
To use Google’s built-in calculator function, simply enter the calculation you’d like done into the search box and hit the Enter key or click on the Google Search button. The calculator can solve math problems involving basic arithmetic, more complicated math, units of measure and conversions, and physical constants. Try one of the sample expressions below.
Click here for full list of instructions : http://www.google.com/help/calculator.html
Currency Conversion
To use Google’s built-in currency converter, simply enter the conversion you’d like done into the Google search box and hit “Enter” or click the Google Search button
Here are some sample queries:
