Pi black outline icon
Greek letter pi with a tapered crossbar and a curled right leg
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About the Pi black outline icon
The Greek letter pi is drawn as a long horizontal crossbar that tapers to a point on the left, with two descending legs: the left one straight and slightly slanted, the right one flaring out into a rounded curl at the foot. It stands for the constant 3.14159 and circle geometry. Use it in math learning apps, calculator keypads, science course catalogs, engineering formula sheets, and statistics dashboards.
The calligraphic weight shift along the crossbar and the hooked right leg give the glyph a handwritten feel rather than a plain typeface look. The wide top makes it read clearly even against dense text. It pairs with sigma, infinity, square root and equals icons in the library. Keep it at 24 px or larger so the curl stays open.
This is the black outline version of the pi icon: even, monoline strokes that stay crisp at small sizes and suit clean, minimal interfaces, wireframes and light backgrounds.
It downloads free as an SVG vector or transparent PNG in seven sizes, and the free online editor lets you recolor it, apply gold, silver, neon and gradient styles, add animation, or convert it to EPS, PDF and DXF.
Free for personal and commercial use with attribution.



















