Copy and paste mathematical Unicode characters — operators, Greek letters, set theory, calculus, and more. Click any symbol to copy it instantly.
Mathematical symbols in Unicode make it easy to write equations, formulas, and scientific notation in plain text — no LaTeX or special software needed. These characters are supported in emails, social media, documents, and messaging apps. Browse by category and click any symbol to copy it.
Looking for the full story on one specific symbol — its history, alt codes, and platform compatibility? Seven of the symbols below have their own dedicated page: square root (√), infinity (∞), plus-minus (±), less than & greater than (< >), division sign (÷), multiplication sign (×), and squared & cubed (² ³).
Arithmetic and algebraic operator symbols for equations and expressions.
Symbols for comparing values and expressing relationships between quantities.
Symbols for set membership, subsets, unions, intersections, and logical operations.
Lowercase Greek letters used in mathematics, physics, and science.
Uppercase Greek letters used as identifiers in mathematics, statistics, and engineering — e.g., Σ for summation, Δ for change, Ω for ohms.
Integral, derivative, summation, and limit symbols for calculus notation.
Superscript and subscript digit characters for exponents and chemical formulas. For additional numeric styles, see the dedicated number symbols page.
The precomposed radical signs in Unicode: square root, cube root, and fourth root. For exponents, see the superscript numbers above.
The infinity sign and its Unicode variations — proportional, eternal, and the mathematical infinity forms.
Less-than / greater-than relations beyond the basics — strict, non-strict, negated, and "less-than-or-equal" variants used in algebra, set notation, and proofs.
Use UltraTextGen to convert plain text into bold, italic, cursive, and 100+ other Unicode font styles — free and instant.
Open UltraTextGen →Dollar, euro, pound, yen, and other global currency symbols.
Punctuation, typography, and special Unicode characters for writing.
Circles, diamonds, squares, triangles, and decorative shapes for formatting.
All Unicode arrow characters for navigation, direction, and list formatting.
The engineering diameter sign (⌀) and the symbols people mistake it for.
The infinity symbol for autism and neurodiversity, and why it replaced the puzzle piece.
The micro sign (µ) used for microns, micrograms, and microseconds.
The Greek letter Σ σ, the 🗿 moai emoji people actually paste for the "sigma male" meme, and sigma's real math meaning — all in one place.
William Oughtred's 1631 × mark, and why it's often typed as a letter x instead.
The two superscript digits old enough to predate the rest of the set.
The equals sign with a slash through it (≠).
The ≅ that every geometry class uses for congruent shapes — same shape, same size.
The capital Δ that means ‘change in’ across math, physics, and engineering, and the lowercase δ used for infinitesimals and the partial…
The lowercase π everyone means by ‘the pi symbol,’ the capital Π that means ‘product’ in math, and the dedicated ∏ product operator.
The lowercase χ that powers the χ² statistical test, the capital Χ that opens "Christ" in Greek and gave us the Chi-Rho monogram and the…
The lowercase λ that graphic designer Tom Doerr turned into a gay-liberation emblem in 1970, the same letter behind Alonzo Church's lambda…
The lowercase φ that stands for the golden ratio (≈1.618), the capital Φ physicists use for magnetic flux, and the closed math variant ϕ.
The lowercase ψ and capital Ψ.
The lowercase θ that marks an angle in trigonometry, the capital Θ of Big-Theta complexity notation, and the open-loop math variant ϑ.
The keyboard tilde (~) that marks your Unix home folder and means ‘roughly,’ the small tilde ˜ and the combining mark that sits over ñ, ã…
The ≤ you reach for when a value can be smaller than another value or exactly equal to it.