The Greek alphabet has 24 letters, from Alpha (Α) to Omega (Ω). Greek letters appear constantly in mathematics, physics, statistics, engineering and science — π (pi), Σ (sum), Δ (change), λ (wavelength), Ω (ohms) and more. This chart shows each letter name, uppercase, lowercase and Latin equivalent.
| Name | Uppercase | Lowercase | Latin |
|---|---|---|---|
| Alpha | Α | α | a |
| Beta | Β | β | b |
| Gamma | Γ | γ | g |
| Delta | Δ | δ | d |
| Epsilon | Ε | ε | e |
| Zeta | Ζ | ζ | z |
| Eta | Η | η | e |
| Theta | Θ | θ | th |
| Iota | Ι | ι | i |
| Kappa | Κ | κ | k |
| Lambda | Λ | λ | l |
| Mu | Μ | μ | m |
| Nu | Ν | ν | n |
| Xi | Ξ | ξ | x |
| Omicron | Ο | ο | o |
| Pi | Π | π | p |
| Rho | Ρ | ρ | r |
| Sigma | Σ | σ | s |
| Tau | Τ | τ | t |
| Upsilon | Υ | υ | u |
| Phi | Φ | φ | ph |
| Chi | Χ | χ | ch |
| Psi | Ψ | ψ | ps |
| Omega | Ω | ω | o |