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U+210D · Letterlike Symbols

Double-Struck Capital H ℍ

Double-Struck Capital H is the Unicode character U+210D (official name “DOUBLE-STRUCK CAPITAL H”) from the Letterlike Symbols block. It belongs to SymbolHero’s letterlike symbols collection. Copy it with the button, or use the codes and keyboard methods below to type it yourself.

UnicodeU+210D
HTMLℍ
ℍU+210D

Character codes

Unicode code pointU+210D
Decimal8461
HTML named entityℍ
HTML (hex)ℍ
HTML (decimal)ℍ
CSS\210D
JavaScript\u210D
Python\u210D
UTF-8 bytesE2 84 8D
UTF-16210D
URL-encoded%E2%84%8D

Character details

Official nameDOUBLE-STRUCK CAPITAL H
Unicode blockLetterlike Symbols
General categoryUppercase Letter (Lu)
SymbolHero categoryLetterlike Symbols
Decomposition<font> U+0048
EmojiNo

How to type ℍ

Windows

  • In Microsoft Word or Outlook: type 210D then press Alt + X.
  • Open Character Map (search “Character Map” in Start), tick “Advanced view”, search for “double-struck capital h”, then Select and Copy.

Mac

  • Press Control + Command + Space to open the Character Viewer, search “double-struck capital h”, and double-click the result.
  • With the Unicode Hex Input keyboard enabled (System Settings → Keyboard → Input Sources), hold Option and type 210D.

iPhone & Android

  • Tap Copy at the top of this page, then long-press where you want it and choose Paste.

Docs & web

  • Google Docs: Insert → Special characters, then search “double-struck capital h” or enter U+210D.
  • HTML: &Hopf; or ℍ
  • Excel / Google Sheets: =UNICHAR(8461)

Similar letterlike symbols

Ohm Sign
Account of
Addressed to the Subject
Double-Struck Capital C
Centre Line Symbol
Care of
Cada Una
Euler Constant
Scruple
Script Small G
Script Capital H
Black-Letter Capital H
Planck Constant
Planck Constant Over Two Pi
Script Capital I
Black-Letter Capital I
Script Capital L
Script Small L
L B Bar Symbol
Double-Struck Capital N
Sound Recording Copyright
Script Capital P
Double-Struck Capital P
Double-Struck Capital Q

See all 81 letterlike symbols →

Questions

What is the Unicode for ℍ?

It is U+210D (DOUBLE-STRUCK CAPITAL H), decimal 8461.

Is there a Windows Alt code for it?

No standard Alt code exists for this character. In Word type 210D then Alt+X, or copy it from this page.

How do I type it on a Mac?

There is no built-in Option shortcut. Use the Character Viewer (Control + Command + Space) and search “double-struck capital h”, or copy it from this page.

What is the HTML code?

Use the named entity &Hopf; or the numeric reference ℍ.