The Calculator app for Windows 10 is a touch-friendly version of the desktop calculator in previous versions of Windows. You can open multiple calculators at the same time in resizable windows on the desktop and switch between Standard, Scientific, Programmer, Date calculation, and Converter modes.

Use Excel as your calculator. Instead of using a calculator, use Microsoft Excel to do the math! You can enter simple formulas to add, divide, multiply, and subtract two or more numeric values. Or use the AutoSum feature to quickly total a series of values without entering them manually in a formula. After you create a formula, you can copy it ...

Go to Home > Format, and then choose Format Cells. In the Format Cells box, choose Custom in the Category list. In the Type box, at the top of the list of formats, type [h]:mm;@ and then select OK. The result is 28 hours and 15 minutes. The format will be in the Type list the next time you need it.

You use the subtraction operator ( -) to find the difference between times, and then do either of the following: Apply a custom format code to the cell by doing the following: Select the cell. On the Home tab, in the Number group, click the arrow next to the General box, and then click More Number Formats. In the Format Cells dialog box, click ...

Use Excel as your calculator in Excel for Mac. Excel for Microsoft 365 for Mac Excel 2021 for Mac Excel 2019 for Mac. Instead of reaching for your calculator, use Excel to do the math! On a sheet, you can enter simple formulas to add, subtract, multiply, and divide two or more numeric values.

Enter a formula that contains a built-in function. Select an empty cell. Type an equal sign = and then type a function. For example, =SUM for getting the total sales. Type an opening parenthesis (. Select the range of cells, and then type a closing parenthesis). Press Enter to get the result.

Let's take an example of a simple formula. On the worksheet, click the cell in which you want to enter the formula. Type the = (equal sign) followed by the constants and operators (up to 8192 characters) that you want to use in the calculation. For our example, type =1+1. Instead of typing the constants into your formula, you can select the ...

Press + C . In the sheet, select cell A1, and then press + V . Calculate the difference in days. Calculate the number of days between two dates. Select cell D2, which is the first blank cell in the Duration column. Type =C2-B2, and then press RETURN . Excel displays the result as the number of days between the two dates (104).