SQUARE ROOT

Official Unicode character in the Mathematical Operators block. Use the copy buttons or follow the platform-specific instructions below to type this character.

How to Type the SQUARE ROOT (√)

Windows Instructions

Hold Alt + type 251 or Alt + 8730 on NumPad

Num Lock must be turned on. Numbers must be typed on the physical numeric keypad on the right.

macOS (Apple) Instructions

Press Option + V

Standard macOS mnemonic Option key shortcut compatible with US and International Mac keyboards.

Technical Specifications & Encoding Details

Unicode Codepoint	U+221A
Decimal Value	8730
Hexadecimal Value	0x221A
UTF-8 Bytes	0xE2 0x88 0x9A
HTML Named Entity	√
HTML Decimal Entity	√
HTML Hex Entity	√
General Category	Math Symbol (Sm)
Unicode Block	Mathematical Operators
Script	Common