HTML Entity - Plus-minus Sign
Plus-minus Sign is a mathematical operators, comparison symbols, and notation characters. This HTML entity enables web developers to display this character reliably across all browsers without encoding issues.
U+00B1
±
\00B1
Use this HTML entity in mathematical expressions and equations. For example, ≠ for not equal, ≤ for less than or equal, ∞ for infinity.
Related Entities
Common Mistakes
Mistake: Using +/- instead of the proper ± symbol
Fix: Use ± (±) for the plus-minus symbol. Writing "+/-" is informal and not standard in mathematics.
Mistake: Confusing ± (plus-minus) with ∓ (minus-plus)
Fix: The ± sign means "plus or minus". The ∓ sign means "minus or plus" and is used in specific formulas like cos(A ± B) = cos A cos B ∓ sin A sin B.
Plus-minus Sign
Select any code to highlight it before copying.
| Unicode | U+00B1 |
|---|---|
| Hex Code | ± |
| HTML Code | ± |
| HTML Entity | ± |
| CSS Code | \00B1 |
| Windows Shortcut | Alt 0177 |
| Mac Shortcut | ⌥+ |
