You can use Calculator for a variety of tasks, from simple maths to advanced statistics. Here are answers to some common questions about the Calculator on the desktop.

For information about the Calculator app for Windows, see Calculator app for Windows: FAQ.

Calculator window
Calculator window
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What are the different modes in Calculator?

Calculator includes four modes – Standard, Scientific, Programmer and Statistics.

  1. Open Calculator by swiping in from the right edge of the screen, tapping Search (or if you're using a mouse, pointing to the upper-right corner of the screen, moving the mouse pointer down, and then clicking Search), entering calc.exe in the search box, and then tapping or clicking Calc.

  2. Tap or click View, then choose the mode you want.

Note

  • When you switch modes, your current calculation is deleted. Calculation history and numbers stored in memory are saved.

Scientific mode

In this mode, you can perform calculations that are slightly more complex than in Standard mode.

  • To use inverse functions, tap or click the Inv button.

  • In Scientific mode, Calculator is precise to 32 significant digits.

Note

  • If you combine several operators (+, -, *, /), Calculator uses standard operator precedence – that is, it performs calculations in the following order:

    1. Brackets (or parentheses)

    2. Exponents and roots

    3. Multiplication and division

    4. Addition and subtraction

Programmer mode

In this mode, Calculator is precise up to 64 bits, depending on the word size that you've selected.

  • Calculator honours operator precedence.

  • Programmer mode is an integer-only mode – the decimal portions of numbers aren't used.

Statistics mode

In this mode, enter the data that you want to calculate statistics for, and then perform the calculations.

  1. Enter your first piece of data, and then tap or click Add to add the data to the data set.

  2. Tap or click the button for the statistical calculation you want to perform.

What is calculation history?

A session starts when you open Calculator and lasts until you close it. Calculation history saves all the calculations performed in a session. You can change the values in the history and calculate new results. You can see calculation history for both Standard and Scientific modes.

  1. Open Calculator by swiping in from the right edge of the screen, tapping Search (or if you're using a mouse, pointing to the upper-right corner of the screen, moving the mouse pointer down, and then clicking Search), entering calc.exe in the search box, and then tapping or clicking Calc.

  2. Tap or click View, and then tap or click History.

  3. Swipe across or double-click the calculation that you want to edit.

  4. Enter the new values that you want to calculate, and then press Enter.

Note

  • Calculation history is kept separately for Standard and Scientific modes. You’ll see the history for the mode that you're using.

How do I convert values from one unit of measurement to another?

  1. Open Calculator by swiping in from the right edge of the screen, tapping Search (or if you're using a mouse, pointing to the upper-right corner of the screen, moving the mouse pointer down, and then clicking Search), entering calc.exe in the search box, and then tapping or clicking Calc.

  2. Tap or click View, then tap or click Unit conversion.

  3. Under Select the type of unit you want to convert, tap or click the type of unit you want to convert, the value you want to convert from, and the value you want to convert to.

  4. In the From box, enter the value that you want to convert.

Can I calculate dates?

Yes, you can use Calculator to find out the difference between two dates or to add or subtract days from a specified date.

  1. Open Calculator by swiping in from the right edge of the screen, tapping Search (or if you're using a mouse, pointing to the upper-right corner of the screen, moving the mouse pointer down, and then clicking Search), entering calc.exe in the search box, and then tapping or clicking Calc.

  2. Tap or click View, and then tap or click Date calculation.

  3. Under Select the date calculation you want, choose the type of calculation you want to perform.

  4. Pick your values, and then tap or click Calculate.

How do I calculate fuel economy, lease, or mortgage payments?

  1. Open Calculator by swiping in from the right edge of the screen, tapping Search (or if you're using a mouse, pointing to the upper-right corner of the screen, moving the mouse pointer down, and then clicking Search), entering calc.exe in the search box, and then tapping or clicking Calc.

  2. Tap or click View, tap or point to Worksheets, then tap or click the item you want to calculate.

  3. Under Select the value you want to calculate, choose the value that you want to calculate, enter the values in the text boxes, then tap or click Calculate.