Copy ⟂, the perpendicular sign, or ∥, the parallel sign, and paste it into your math.
Perpendicular Symbol Copy and Paste
⟂PerpendicularU+27C2Ready to copy
21 perpendicular and parallel signs. Tap any value to copy it.
21 perpendicular and parallel signs. A character and its name both copy the character. A code copies the code.
Character
Name
Code point
Alt code
HTML
LaTeX
U+27C2. Goes between two names when the first stands at 90 degrees to the second. \perp types it in LaTeX math. HTML has no name for it, and neither an Alt code nor a key reaches it.
U+22A5. The look-alike that did the job before U+27C2 existed, and the character HTML calls ⊥. In logic it is read bottom, or falsum.
U+2225. Two upright strokes between the names of two lines: they never meet. ∥ in HTML, \parallel in LaTeX.
Made of A, B, U+27C2, C and D: segment AB is perpendicular to segment CD. Put your own letters around the sign.
Made of A, B, U+2225, C and D: the same statement for two parallel segments.
Made of U+27C2 and U+0338, the combining long solidus overlay, which strikes a slash through the sign before it. Unicode has no single character for not perpendicular; how neatly the slash sits depends on the font.
U+2226. The struck-out partner of ∥, which does exist as one character. ∦ in HTML; \nparallel in LaTeX needs the amssymb package.
U+29B9. The perpendicular sign inside a ring. ⦹ in HTML; the unicode-math package names it \operp.
U+2AE1. A perpendicular sign with a small s on its foot. The unicode-math package names it \perps.
U+22D5. Equal and parallel in one sign: two level bars crossed by two upright ones. ⋕ in HTML.
U+29B7. The two strokes of ∥ inside a ring. ⦷ in HTML.
U+2AF2. A level stroke through both uprights, a second way to negate parallel. ⫲ in HTML.
U+2AF3. The uprights with a wave drawn across them. ⫳ in HTML.
U+29E3. An equals sign crossed by two leaning strokes. ⧣ in HTML.
U+29E4. The same leaning sign under a wave. ⧤ in HTML.
U+29E5. Three level bars crossed by two leaning strokes. ⧥ in HTML.
U+2AFD. Two slashes as one operator, the leaning way to write parallel. ⫽ in HTML; \sslash with unicode-math.
U+2534. A box-drawing junction, not a math sign, yet the nearest shape to ⟂ that a number pad can type: Alt+193.
U+2551. A double wall from the same box-drawing set, the stand-in for ∥ on a number pad: Alt+186.
U+2016. Looks like ∥ and is punctuation: mathematicians set a pair of them around a matrix to mean its norm. \Vert, or ‖ on the web.
U+22A4. ⟂ turned on its head, which Unicode gives the second name top. It has an entity where ⟂ has none: ⊤. Its LaTeX macro is \top.
The perpendicular symbol is ⟂, U+27C2: it says that two lines meet at a right angle. Its look-alike ⊥, U+22A5, is the character HTML calls ⊥. The parallel lines symbol is ∥.
Read the full guide
Two characters for one sign
Until Unicode 4.1, of March 2005, the perpendicular math symbol had no code of its own and was written with ⊥, the up tack of logic. ⟂ was then added, to be set with extra space between two names, as in AB⟂CD: line AB is perpendicular to line CD.
No key and no Alt code
The perpendicular symbol is on no keyboard key and in neither Alt code table, and the same is true of ∥. The nearest characters with an alt code are box-drawing pieces: ┴ is Alt+193 and ║ is Alt+186.
∦ is not parallel to; its LaTeX macro \nparallel needs the amssymb package.
In LaTeX, \perp is the perpendicular sign in math mode and \parallel is ∥.
Questions and answers
What is the symbol for perpendicular?
⟂, which Unicode names Perpendicular, U+27C2, and also orthogonal to. The look-alike ⊥ is a separate character, U+22A5, called the up tack.
What is the alt code for the perpendicular symbol?
There is none. Neither Alt code table holds ⟂, ⊥ or ∥, so no alt code for the perpendicular sign or for the parallel symbol exists. ┴, Alt+193, and ║, Alt+186, are look-alikes from the box-drawing set.
Is there a keyboard shortcut for the perpendicular symbol?
No key of the U.S. layout types it, with or without Option. In a web page, ⊥ gives ⊥ and ∥ gives ∥. In LaTeX, write \perp or \parallel.
What is the symbol for not perpendicular?
Unicode has no single character for it. It is written ⟂ followed by U+0338, the combining long solidus overlay, which draws a slash through the sign. In LaTeX it is \not\perp.
What is the math symbol for perpendicular lines on a keyboard?
⟂ is the math symbol for perpendicular lines, and no keyboard has it. A perpendicular lines symbol reaches a document by copying it, by its code point U+27C2, or by a macro such as \perp.
All 21 perpendicular and parallel signs
Start here 7
AB∥CDAB is parallel to CDMade of A, B, U+2225, C and D: the same statement for two parallel segments.
AB⟂CDAB is perpendicular to CDMade of A, B, U+27C2, C and D: segment AB is perpendicular to segment CD. Put your own letters around the sign.
∦Not parallel toU+2226. The struck-out partner of ∥, which does exist as one character. ∦ in HTML; \nparallel in LaTeX needs the amssymb package.
⟂̸Not perpendicularMade of U+27C2 and U+0338, the combining long solidus overlay, which strikes a slash through the sign before it. Unicode has no single character for not perpendicular; how neatly the slash sits depends on the font.
∥Parallel toU+2225. Two upright strokes between the names of two lines: they never meet. ∥ in HTML, \parallel in LaTeX.
⟂PerpendicularU+27C2. Goes between two names when the first stands at 90 degrees to the second. \perp types it in LaTeX math. HTML has no name for it, and neither an Alt code nor a key reaches it.
⊥Up tackU+22A5. The look-alike that did the job before U+27C2 existed, and the character HTML calls ⊥. In logic it is read bottom, or falsum.
Show all 21 perpendicular and parallel signs (14 more)
Perpendicular signs 2
⦹Circled perpendicularU+29B9. The perpendicular sign inside a ring. ⦹ in HTML; the unicode-math package names it \operp.
⫡Perpendicular with sU+2AE1. A perpendicular sign with a small s on its foot. The unicode-math package names it \perps.
Parallel signs 8
⦷Circled parallelU+29B7. The two strokes of ∥ inside a ring. ⦷ in HTML.
⫽Double solidus operatorU+2AFD. Two slashes as one operator, the leaning way to write parallel. ⫽ in HTML; \sslash with unicode-math.
⋕Equal and parallel toU+22D5. Equal and parallel in one sign: two level bars crossed by two upright ones. ⋕ in HTML.
⧣Equals sign and slanted parallelU+29E3. An equals sign crossed by two leaning strokes. ⧣ in HTML.
⧤Equals sign and slanted parallel with tilde aboveU+29E4. The same leaning sign under a wave. ⧤ in HTML.
⧥Identical to and slanted parallelU+29E5. Three level bars crossed by two leaning strokes. ⧥ in HTML.
⫲Parallel with horizontal strokeU+2AF2. A level stroke through both uprights, a second way to negate parallel. ⫲ in HTML.
⫳Parallel with tilde operatorU+2AF3. The uprights with a wave drawn across them. ⫳ in HTML.
Look-alikes, two with Alt codes 4
║Box drawings double verticalU+2551. A double wall from the same box-drawing set, the stand-in for ∥ on a number pad: Alt+186.
┴Box drawings light up and horizontalU+2534. A box-drawing junction, not a math sign, yet the nearest shape to ⟂ that a number pad can type: Alt+193.
‖Double vertical lineU+2016. Looks like ∥ and is punctuation: mathematicians set a pair of them around a matrix to mean its norm. \Vert, or ‖ on the web.
⊤Down tackU+22A4. ⟂ turned on its head, which Unicode gives the second name top. It has an entity where ⟂ has none: ⊤. Its LaTeX macro is \top.