Alternatively known as Control+1 and C-1, ^1, Ctrl+1 is a keyboard shortcut often used to switch to the first tab in an Internet browser or other programs with tab support.

How to use the Ctrl+1 keyboard shortcut

To use this keyboard shortcut, press and hold either Ctrl key, and while continuing to hold, press 1.

  • How to use the Ctrl+1 keyboard shortcut.
  • Ctrl+1 in Microsoft Excel.
  • Ctrl+1 in an Internet browser.
  • Ctrl+1 in Microsoft Word.
  • Related keyboard shortcuts and keys.
  • Related information.
  • Computer keyboard shortcuts.

Ctrl+1 in Microsoft Excel

In Microsoft Excel and all other spreadsheet programs, pressing Ctrl+1 opens the Format Cells window.

For this shortcut, you need to use 1 above the top row keys, not on the numeric keypad.

  • Full list of Excel shortcuts.

Ctrl+1 in an Internet browser

With all major Internet browsers (e.g., Chrome, Edge, Internet Explorer, Firefox), pressing Ctrl+1 switches to the first tab.

  • Firefox shortcuts
  • Google Chrome shortcuts
  • Internet Explorer shortcuts

Ctrl+1 in Microsoft Word

In Microsoft Word, pressing Ctrl+1 changes a line, paragraph, or all highlighted text to have single spacing.

Below are links to related keyboard shortcuts and individual key pages.

You may also press Ctrl+2 to set the line spacing to double, or Ctrl+5 to set it to 1.5 spaces per line.

  • Ctrl+0
  • Ctrl+2
  • Ctrl+3
  • Ctrl+4
  • Ctrl+5
  • Ctrl+6
  • Ctrl+7
  • Ctrl+8
  • Ctrl+9
  • Ctrl

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