Phi in LaTeX

The LaTeX command for phi (ϕ) is \phi.

\phi

Greek Lowercase · Unicode ϕ (U+03D5) · no package needed

How to type Phi

Write \phi 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

$\phi \in \mathbb{R}$

\phi \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

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FAQ

How do you write phi (ϕ) in LaTeX?

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

Which package provides \phi?

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

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