You can switch the type of calculator that you are using by swiping left and right on your BlackBerry device.
You can use the calculator on your BlackBerry device to convert one unit of measurement to another. The calculator includes many different types and units of measurement for the different kinds of scenarios that you find yourself in, so you don't need to stop what you're doing to convert measurements.
When you're out at a restaurant, you can use the tip calculator to figure out how much to leave for a tip. You can customize your calculations to specify the number of people included on the bill and the percentage of the bill that you want to tip. The tip calculator can also calculate how much each person owes on a bill, making it easy to divide up a bill amongst a table of people.