HTML Entity Detail

HTML Entity - Phi

Phi is a lowercase Greek alphabet letters used in formulas, constants, and academic notation. This HTML entity enables web developers to display this character reliably across all browsers without encoding issues.

Symbol preview
φ
Unicode

U+03C6

HTML entity

φ

CSS code

\03C6

Usage Examples

Use this HTML entity in mathematical formulas and scientific constants. For example, π for pi, α for alpha, β for beta.

Common Mistakes

⚠️

Mistake: Confusing Greek lowercase letters with their Latin look-alikes

Fix: Greek ν (nu) looks like Latin v, Greek ρ (rho) looks like Latin p, Greek ω (omega) looks like Latin w. These are different characters with different Unicode values and distinct meanings in formulas.

⚠️

Mistake: Using the wrong Greek letter for a standard scientific constant

Fix: Each scientific field has conventions: π for pi constant, μ for coefficient of friction, λ for wavelength, ρ for density, σ for standard deviation. Check the standard notation for your field.

Phi

Select any code to highlight it before copying.

Category: Greek Alphabet - Small Letters
Unicode U+03C6
Hex Code φ
HTML Code φ
HTML Entity φ
CSS Code \03C6
Windows Shortcut
Mac Shortcut
HTML code example
CSS code example
Last updated: 21 Jun 2026