Pi black outline icon
Greek letter pi with long crossbar and curled leg ends
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About the Pi black outline icon
The Greek letter pi is drawn as a long horizontal crossbar over two vertical legs that finish in small hooked curls, giving it a calligraphic serif feel. It represents the mathematical constant, geometry, circles and formulas generally. Use it in math courseware, calculator and spreadsheet tools, engineering documents, science presentations and Pi Day or STEM event graphics.
The crossbar extends slightly past both legs and the mirrored curls balance the letterform, so it reads as typography rather than a plain glyph. It pairs with other math marks in the library such as sigma, infinity and square root. Set it on a generous baseline so the delicate curls do not clip.
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.
