Related topics
Excel for the web
Sign in with Microsoft
Sign in or create an account.
Select a different account.
You have multiple accounts
Choose the account you want to sign in with.
Excel for the web

Create formulas

Your browser does not support video. Install Microsoft Silverlight, Adobe Flash Player, or Internet Explorer 9.

Try it!

Just like the desktop version of Excel, Excel for the web lets you use formulas and functions to perform calculations.

  1. Select a cell.

  2. Type the equal sign =.

  3. Type or select a cell, or type in a function, like SUM.

  4. Enter an operator, like minus -, or select the cells or range that are part of the function.

  5. Press Enter for the result. The result shows in the cell, but you can always see the formula in the Formula bar.

Dynamic arrays

Excel formulas that return multiple values, also known as an array, return results to neighboring cells. This behavior is called spilling. Any formula that has the potential to return multiple results can be referred to as a dynamic array formula.

  1. Select a cell with room around for results to spill into.

  2. As an example, type =SORTBY(A2:B15,B2:B15,1).

  3. Press Enter for the results.

    Note: Array formulas can't be input if there is anything blocking the output range. If this happens, Excel will return a #SPILL! error indicating that there is a blockage. If you remove the blockage, the formula will spill as expected.

Want more?

Overview of formulas in Excel

Excel functions (by category)

Dynamic arrays and spilled array behavior

Excel help & training

Office for the web Quick Starts

Need more help?

Want more options?

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.

Was this information helpful?

What affected your experience?
By pressing submit, your feedback will be used to improve Microsoft products and services. Your IT admin will be able to collect this data. Privacy Statement.

Thank you for your feedback!