Greek Letter Lookup

About this calculator

Greek letters function as a shared symbolic shorthand across math, physics, engineering, and statistics — α (alpha) for a significance level or angle, β (beta) for a regression coefficient or particle, π (pi) for the circle constant, Δ (delta) for change, σ (sigma) for standard deviation, and dozens more, each with both a lowercase and uppercase form that can carry different meanings.

Students, engineers, and scientists reach for a lookup like this when reading a formula or paper that uses a letter they don’t immediately recognize, or when they need the correct symbol to type into an equation. This tool takes a Greek letter’s name or symbol and returns its lowercase and uppercase forms plus its most common use in mathematics or science.