Chi in LaTeX

The LaTeX command for chi (χ) is \chi.

\chi

Greek Lowercase · Unicode χ (U+03C7) · no package needed

How to type Chi

Write \chi inside math mode — that is, between $…$ for inline math or in a \[ … \] / equation block for display math. It is part of core LaTeX math, so no extra package is required.

Example

$\chi \in \mathbb{R}$

\chi \in \mathbb{R}

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Related Greek Lowercase symbols

\alpha\beta\gamma\delta\epsilon\varepsilon\zeta\eta\theta\vartheta\iota\kappa\varkappa\lambda

Search all 380+ LaTeX symbols →

FAQ

How do you write chi (χ) in LaTeX?

Use \chi in math mode — it needs no extra package. For example, $\chi \in \mathbb{R}$.

Which package provides \chi?

None — \chi is built into LaTeX's math mode, so no extra package is required.

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