Double Prime
Part of Punctuation and Typography Marks
Double Prime has no standard Windows Alt code. Copy the character directly, or use its HTML entity or Unicode value instead.
- Alt code
- None
- HTML entity
- ″
- Unicode
- U+2033
About this symbol
The double prime marks inches and seconds: 6′ 2″ is six feet two inches, and 30″ is thirty seconds of arc. In maths f″ is the second derivative. It is a separate character from the straight double quotation mark it is often replaced by.
Unicode facts
- Official name
- DOUBLE PRIME
- Also called
- Seconds, inches
- Type
- Punctuation
- Unicode block
- General Punctuation
- Added in
- Unicode 1.1 (1993)
Click the symbol or any value at the top of the page to copy it. See the full Punctuation and Typography Marks chart for related characters.