AutoFit column width shortcut in Excel for Mac
Short answer: Excel for Mac has no built-in keyboard shortcut for AutoFit. Double-click the column border, or use Format ▸ Column ▸ AutoFit Selection. With RibbonBridge, tap ⌥ and type HOI, exactly like AltHOI on Windows.
Ways to autofit on a Mac
1. Double-click the border (mouse)
Point at the line between two column letters (for example between A and B) and double-click: column A fits its widest entry. Select several columns first to fit them all at once. For rows, double-click the line between two row numbers.
2. The Format menu
Select the column, then choose Format ▸ Column ▸ AutoFit Selection. For rows: Format ▸ Row ▸ AutoFit. Reliable, but three clicks deep.
3. Option H O I with RibbonBridge
Excel for Mac's KeyTips get you to the Format menu (⌥HO), but its items have no letters, so the I does nothing. RibbonBridge adds the Windows letters, so the whole sequence works from the keyboard:
| On Mac | What it does | Windows |
|---|---|---|
| ⌥HOI | AutoFit column width | Alt H O I |
| ⌥HOA | AutoFit row height | Alt H O A |
| ⌥HOW | Set column width… | Alt H O W |
| ⌥HOH | Set row height… | Alt H O H |
| ⌥OCA | AutoFit column (classic Excel 2003 sequence) | Alt O C A |
| ⌥ORA | AutoFit row (classic Excel 2003 sequence) | Alt O R A |
Tip: select the whole sheet first (⌘A), then ⌥HOI fits every column at once.
Setup
- Switch on Excel's KeyTips: Excel ▸ Settings ▸ Accessibility ▸ KeyTips ▸ ⌥.
- Install RibbonBridge. Its welcome window can do step 1 for you.
- Tap Option (press and release) and type the letters one after another.
Get Alt H O I back on your Mac. RibbonBridge is a small Mac app for Excel: 7 days free with just your email, then €15 once.
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