Plus-minus sign (±): copy and paste
The plus-minus sign (±) means “plus or minus”. It gives a tolerance or margin of error (5 ± 0.1 mm, 48 % ± 3) or both roots of an equation (x = ±2).
Put spaces around it when it separates a value from its uncertainty, and none when it is a sign (±2). The reversed form ∓ pairs with ± in formulas that need the opposite sign.
Plus-minus sign variants to copy
Click any character to copy it.
How to type ± on Mac, Windows and phone
On a Mac with the US keyboard layout, press ⌥ Option + ⇧ Shift + = to type ±.
On Windows, hold Alt and type 0177 on the numeric keypad (Num Lock on), then release Alt. Alt + 241 also works.
Not on the default keyboards. Paste ± from here.
| Platform | How to type ± |
|---|---|
| Mac (US layout) | ⌥ Option + ⇧ Shift + = |
| Windows | Alt + 0177 |
| Any Mac app | Emojibar: click the menubar icon, search “plus-minus sign”, click to copy |
Plus-minus sign codes for HTML, CSS and LaTeX
| Unicode | U+00B1 |
| HTML | ± · ± |
| CSS content | "\00B1" |
| LaTeX | \pm |