↔
Unicode
U+2194LaTeX
\leftrightarrowHTML entity
↔HTML decimal
↔MathML
<mo>↔</mo>Semantic identity and intent
Characters to distinguish
- → — Right Arrow
- ⇔ — If and Only If
Use ↔ in the right format
Meaning and usage
Shows a reversible relation, correspondence, or bidirectional movement.
In logic, a double arrow is usually preferred for equivalence.
Pronunciation: left right arrow
Formula examples
A\leftrightarrow BHow to type Left Right Arrow
- Windows
- Use Character Map or enter U+2194 in a Unicode-aware app.
- macOS
- Open Character Viewer with Control–Command–Space and search by name.
- Microsoft Word
- Type \leftrightarrow in an equation and press Space.
- iPhone and iPad
- Copy and paste ↔, or use a math/LaTeX app. The standard iOS keyboard may not expose every mathematical symbol.
- Android
- Copy and paste ↔, or use a math keyboard or LaTeX editor. Keyboard layouts vary by device and app.
- Google Docs
- For plain text, paste ↔ or use Insert → Special characters. For structured math, use the equation editor and verify \leftrightarrow.
- Excel
- Paste ↔ into a cell or use Insert → Symbol when available. Ordinary cells preserve the character but do not interpret LaTeX commands.
Common mistakes
- Preserve the direction, number of heads, and decoration of ↔; those visual details can distinguish implication, mapping, convergence, or movement.
- For plain text, copy ↔ as U+2194; for structured equations, use \leftrightarrow in math mode. A look-alike glyph or image can break search, accessibility, or parsing when the intended character is Left Right Arrow.
When to use ↔
- Use ↔ in plain text when a Unicode character is appropriate and the destination preserves U+2194.
- Use \leftrightarrow in an equation editor when mathematical spacing or structure matters.
- Define the local meaning when Left Right Arrow is used in arrows with a field-specific convention.
Look-alikes and related characters
- → — Right Arrow
- ⇔ — If and Only If
Font and compatibility notes
Font coverage varies; verify the code point and destination rendering before publication.
Continue the workflow
From Left Right Arrow to a finished equation
- Copy the characterUse ↔ in plain text when Unicode is accepted.
- Choose a structured formatUse
\leftrightarrowfor LaTeX or the MathML snippet for accessible web equations. - Edit or convertOpen the value in the editor or converter without retyping it.
Review and source notes
Quality tier: catalog
Last reviewed: 2026-07-23
Review method: Catalog review of character identity and notation mappings.
Verified against: Unicode Standard, Unicode mathematical notation guidance, and established LaTeX/MathML syntax.
Reference sources
- The Unicode StandardUnicode Consortium — Character identity, encoding, names, and conformance.
- Unicode Character Code ChartsUnicode Consortium — Code points and official character charts.
Frequently asked questions
What does the Left Right Arrow symbol mean?
Shows a reversible relation, correspondence, or bidirectional movement.
What is the LaTeX command for ↔?
Use \leftrightarrow in a compatible math environment.
Can I copy ↔ as Unicode?
Yes. Use the copy button above to copy the Unicode character directly.