Pi is written as a special lowercase Greek letter that looks a bit like a small table with two legs: π.

Quick Scoop

If you imagine writing the English letters “n” and “u” and squashing them together, you get close to how π looks.

More precisely, the symbol has:

  • One straight vertical line on the left (a “leg”).
  • A horizontal bar starting near the top of that leg and stretching to the right.
  • A second, slightly curved leg on the right, dropping down from the horizontal bar.

In normal math writing:

  • π is slanted a little to the right (italic) in printed formulas.
  • It is always lowercase; the uppercase Greek Pi, Π, is a different symbol used for repeated multiplication.
  • People pronounce it like “pie,” the dessert.

You’ll usually see it written simply as:

π

That’s the visual symbol people mean when they talk about “pi” in mathematics.

TL;DR: Pi is shown with the Greek letter π , which looks like a small table: a left leg, a flat top bar, and a right leg hanging down from the bar.