Make the Windows Calculator do more than basic math
By Ed Bott
Just like its predecessors, the Windows 10 Calculator app does simple addition, subtraction, multiplication, and division. It can do a few more complicated calculations, including trigonometry and advanced functions, when you switch to Scientific mode. In Programmer mode, you can convert hexadecimal, octal, and binary values to decimal. But thanks to some recent updates, it can do much more than just math.
To see the full set of interesting tricks that the latest Calculator app can perform, click the menu icon in the top left corner and scroll through the long list of options.
Choose Date Calculation, and enter two dates to display the number of days, months, and years between those two values. (You might be surprised at how often that number is useful.)
Under the Converter heading, choose Currency, enter a value, and choose from a list of 128 different currencies for the To and From fields.
And then scroll through the remainder of the conversion options, which are especially useful for Americans who are baffled by metric values, including volume (how many square feet is 130 square meters?), speed (is 100 kilometers per hour really that fast?), and temperature (if it's 18 degrees Celsius, will you need a coat?).

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