How to type Plus-minus Sign
- Windows: hold Alt, type 0177 on the numeric keypad, release.
- Mac: Option+Shift+=.
- HTML:
±or±. - Chromebook: Ctrl+Shift+U, type 00B1, then Enter.
Reference
- Unicode name: PLUS-MINUS SIGN
- Code point: U+00B1
- Category: Math & measurement
- Also searched as: plus or minus tolerance
Symbol data last reviewed: July 9, 2026.