Alt M B on Mac: Calculate Now in Excel

To run Calculate Now with Alt M B in Excel on a Mac, install LightningXL, tap Option, then type M, B. The same keys as Windows, with the same result.

Step by step

1. Install LightningXL

   Download LightningXL, then follow the instructions. Setup takes about two minutes.

2. Select what to act on

   Click a cell, or select the range the command should apply to.

3. Tap Option, then type M B

   Tap ⌥ on its own to show the keytips, then M for Formulas, B for Calculate Now.

What Alt M B does

Calculate Now sits on the Formulas tab of the Excel ribbon. On Windows, Alt M B runs it from the keyboard. Excel for Mac has the same ribbon but no Alt key, so without LightningXL you click through Formulas › Calculate Now instead.

Related shortcuts

The rest of the Formulas tab in Excel:

• ⌥MP Trace Precedents
• ⌥MD Trace Dependents
• ⌥MAA Remove Arrows
• ⌥MH Show Formulas
• ⌥MK Error Checking
• ⌥MW Watch Window
• ⌥MX Calculation Options
• ⌥MJ Calculate Sheet