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One reason this helps is that if you’re updating (via VBA) several different ranges with new values, or copy / pasting from several ranges to create a consolidated table of data, you likely do not want to have Excel taking time and resources to recalculate formulas, display paste progress, or even redraw the grid, especially after every single operation (even more so if your code uses loops). The benefit here is that you probably don’t need Excel using up resources trying to draw the screen since it’s changing faster than the user can perceive.

Just one recalculation and one redraw at the end of your code execution is enough to get the workbook current with all your changes. Enable Events display Page Break State = Active Sheet. Since it requires lots of resources to draw the screen so frequently, just turn off drawing the screen until the end of your code execution.

Here’s some sample code that shows how and what to shut off while your code runs. Display Page Breaks ‘note this is a sheet-level setting ‘turn off some Excel functionality so your code runs faster Application. Be sure to turn it back on right before your code ends.

Simply add the following code line to achieve this.

I want to start off this post by thanking everyone who sent in their examples in response to my January request.

In this post I’m going to share with you the most important performance tips I know about.

There are tons of sites, pages, and people who are experts as well on this subject, have performed their own tests, and shared their results and ideas.

Worksheet Function | Screen Updating | Display Alerts | Calculation The mother of all objects is Excel itself. The application object gives access to a lot of Excel related options. As a result, Excel VBA closes your Excel file, without asking you to save the changes you made. If your workbook contains many complex formulas, you can speed up your macro by setting calculation to manual. For example, place a command button on your worksheet and add the following code line: When you click the command button on the worksheet, Excel VBA sets calculation to manual. You can verify this by clicking on File, Options, Formulas. Now when you change the value of cell A1, the value of cell B1 is not recalculated.

You can use the Worksheet Function property in Excel VBA to access Excel functions. For example, place a command button on your worksheet and add the following code line: When you click the command button on the worksheet, Excel VBA calculates the average of the values in cell A1 and cell A2 and places the result into cell A3. You can manually recalculate the workbook by pressing F9. In most situations, you will set calculation to automatic again at the end of your code.

To insert the formula itself into cell A3, use the following code line: Sometimes you may find it useful to disable screen updating (to avoid flickering) while executing code. You can instruct Excel VBA not to display alerts while executing code. For example, place a command button on your worksheet and add the following code line: When you click the command button on the worksheet, Excel VBA closes your Excel file and asks you to save the changes you made. To instruct Excel VBA not to display this alert while executing code, update the code as follows. As a result, Excel recalculates the workbook automatically each time a value affecting a formula changes.

If you look at the formula bar, you can see that the formula itself is not inserted into cell A3. For example, place a command button on your worksheet and add the following code lines: As a result, your code will run much faster and you will only see the end result (10000).

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