⇄
Math Symbol
U+21C4
Unicode 16.0
RIGHTWARDS ARROW OVER LEFTWARDS ARROW
Official Unicode character in the Arrows block. Use the copy buttons or follow the platform-specific instructions below to type this character.
How to Type the RIGHTWARDS ARROW OVER LEFTWARDS ARROW (⇄)
Windows Instructions
Hold Alt + type 8644 on NumPad
Num Lock must be turned on. Numbers must be typed on the physical numeric keypad on the right.
macOS (Apple) Instructions
Press Unicode Hex Input
Standard macOS mnemonic Option key shortcut compatible with US and International Mac keyboards.
Technical Specifications & Encoding Details
| Unicode Codepoint | U+21C4 |
| Decimal Value | 8644 |
| Hexadecimal Value | 0x21C4 |
| UTF-8 Bytes | 0xE2 0x87 0x84 |
| HTML Named Entity | — |
| HTML Decimal Entity | ⇄ |
| HTML Hex Entity | ⇄ |
| General Category | Math Symbol (Sm) |
| Unicode Block | Arrows |
| Script | Common |