Unicode Character "ё" (U+0451)

The character ё (Cyrillic Small Letter Io) is represented by the Unicode codepoint U+0451. It is encoded in the Cyrillic block, which belongs to the Basic Multilingual Plane. It was added to Unicode in version 1.1 (June, 1993). It is HTML encoded as ё.

Main Unicode Properties

Name Cyrillic Small Letter Io
Unicode Codepoint U+0451
Unicode Version 1.1 (June, 1993)
Block Cyrillic
Plane Basic Multilingual Plane

Bidirectional Data

Bidirectional class Left To Right (L)
Is mirrored? No

Character Case

Case Lowercase
Uppercase character Ё (U+0401)

Other Unicode Data

Category Lowercase Letter
Script Cyrillic
Combining Class Not Reordered
Decomposition mapping

U+0451 Conversion

HTML (decimal) ё
HTML (hex) ё
HTML (named) ё
URL Escape Code %D1%91
CSS \000451
JavaScript, JSON \u0451
C, C++, Java \u0451
Python \u0451
Rust \u{0451}
Ruby \u0451

How to type "ё"

  • Windows ?: Hold Alt, then type 0 4 5 1. Release Alt.
  • Mac ?: Hold Alt ⌥, then type 0 4 5 1. Release Alt.


  • ё
    Times, Times New Roman, serif
  • ё
    Helvetica, Arial, sans-serif
  • ё
    Courier, Courier New, monospace

UTF Encodings

UTF-8 (hex) 0xD1 0x91
UTF-16 (hex) 0x0451
UTF-32 (hex) 0x00000451