Find any math symbol by name, meaning or LaTeX command and copy it in one click. Every symbol shows its Unicode code point, HTML entity, CSS/JavaScript escape and LaTeX command, and you can build a whole expression and convert it to LaTeX.
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All symbols
∑
n-ary summation
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How to use the Math Symbols Copy and Paste
Search or browse: type a name like “integral”, a meaning like “for all”, or a LaTeX command like \subseteq, or pick a group.
Choose what a click copies: the symbol itself, its LaTeX command or its HTML entity.
Click a symbol to copy it; its Unicode, HTML, CSS and JavaScript codes appear below, and each code copies on click.
Build an expression: clicked symbols are inserted in the text box at the cursor; type normal letters in between.
Copy the text or press Convert to LaTeX to get the same expression as LaTeX source.
The most-used math symbols and what they mean
Symbol
Name
Example
LaTeX
HTML
≠
not equal to
3 ≠ 4
\neq
≠
≈
approximately equal
π ≈ 3.14
\approx
≈
≤ ≥
less / greater than or equal
x ≤ 10
\leq \geq
≤ ≥
±
plus-minus
x = 2 ± 0.1
\pm
±
√
square root
√16 = 4
\sqrt{16}
√
∑
summation
∑ᵢ₌₁ⁿ i = n(n+1)/2
\sum_{i=1}^{n}
∑
∫
integral
∫₀¹ x dx = ½
\int_0^1
∫
∂
partial derivative
∂f/∂x
\partial
∂
∞
infinity
lim x→∞
\infty
∞
∈ ∉
element of / not an element of
2 ∈ ℕ, −1 ∉ ℕ
\in \notin
∈ ∉
⊆
subset of or equal to
ℕ ⊆ ℤ
\subseteq
⊆
∪ ∩
union / intersection
A ∪ B, A ∩ B
\cup \cap
∪ ∩
∀ ∃
for all / there exists
∀x ∃y: y > x
\forall \exists
∀ ∃
⇒ ⇔
implies / if and only if
x = 2 ⇒ x² = 4
\Rightarrow \iff
⇒ ⇔
∴
therefore
∴ x = 5
\therefore
∴
Look-alike characters to watch out for
− vs -: U+2212 minus sign vs the keyboard hyphen-minus. Use − in typeset text so numbers align.
× vs x: the multiplication sign × (U+00D7) is not the letter x.
∑ vs Σ, ∏ vs Π, ∆ vs Δ: operators vs Greek capitals. Pick the operator for sums, products and increments.
ε vs ϵ, φ vs ϕ, θ vs ϑ: two shapes of the same Greek letter. In LaTeX, \epsilon gives ϵ and \varepsilon gives ε; \phi gives ϕ and \varphi gives φ.
∣ vs |: the divides sign ∣ (U+2223) has math spacing; the vertical bar | is plain ASCII.
⊥ vs ⟂: up tack (false/bottom, also used for perpendicular) vs the dedicated perpendicular sign U+27C2.
Unicode, HTML or LaTeX: which one to use?
Paste the Unicode character into documents, chats, spreadsheets and social posts. Use the HTML entity in web pages when you cannot be sure the file is saved as UTF-8. Use the LaTeX command in LaTeX, Overleaf, Markdown with MathJax/KaTeX, Jupyter notebooks and many learning platforms, where it renders with correct math spacing. The text box above converts a pasted Unicode expression to LaTeX automatically.
Frequently asked questions
How do I type math symbols without a special keyboard?
Copy them: click a symbol here and paste it with Ctrl+V (Cmd+V on a Mac) into a document, chat, spreadsheet or web form. Unicode math symbols such as ≤, ∈ and √ work in almost every modern app and font.
What is the difference between ∑ and Σ?
∑ (U+2211, n-ary summation) is the math operator for a sum, while Σ (U+03A3) is the Greek capital letter sigma. They look alike but are different characters; screen readers, search and math software treat them differently, so use ∑ for sums. The same applies to ∏ vs Π and ∆ (increment) vs Δ.
Why use − instead of the hyphen on my keyboard?
The true minus sign − (U+2212) has the same width as the plus sign and sits at the right height, so numbers line up. The keyboard hyphen-minus (-) is shorter. In LaTeX you can just type -, because math mode turns it into a proper minus.
How do I write these symbols in LaTeX?
Use the command shown under each symbol inside math mode, for example $a \leq b$, $x \in \mathbb{R}$ or $\int_0^1 f(x)\,dx$. A few need packages: \mathbb needs amssymb, \coloneqq needs mathtools, and \oiint needs esint.
What HTML code should I use for a math symbol on a web page?
Use the named entity when there is one, such as ≤ for ≤ or √ for √, or the numeric form √ that works for every character. On a UTF-8 page you can also paste the symbol directly into the HTML.
Why does a symbol show as an empty box?
The font in that app has no glyph for it. Common symbols are almost always covered; rarer ones such as ⨌ or 𝔽 may need a math font like Cambria Math, STIX Two Math or Noto Sans Math.
Can I use superscript characters like ² for exponents?
Yes for simple cases like x² or m³ in plain text. Unicode only has superscripts for digits, + − = ( ) and a few letters, so for anything more complex use LaTeX (x^{n+1}) or your editor’s superscript formatting.
Are all the tools on FreeToolCabin tested for quality and accuracy?
Yes! Every tool on our site undergoes automated Q/A testing in real browser environments to ensure high precision, correct output, and zero errors. If you happen to spot a bug or have a suggestion, please contact us at [email protected] and our team will review it right away.