Pi Symbol Circle color outline icon
Greek letter pi centered inside a thin circle
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About the Pi Symbol Circle color outline icon
The Greek letter pi is drawn with a long flat crossbar and two legs that curve outward at the feet, centered inside a plain circular frame. It represents the mathematical constant, circle geometry and formula work in general. Useful for math learning apps, calculator keypads, engineering tool palettes, exam revision sites and Pi Day graphics.
The circle echoes the constant's meaning and gives the letter an even margin on every side, matching other round badge glyphs in the set. Pair it with sigma, infinity, square root and equals icons. Keep the stroke weight consistent so it aligns with text-based symbols.
This is the colour outline version of the pi symbol circle icon: the same line drawing in an accent colour, useful for highlighting a state, a category or a brand tone without adding visual weight.
Download it free as a scalable SVG vector or transparent-background PNG in seven sizes (16 to 512px), copy the SVG code straight into your project, or open it in the free online editor to change colors, apply gold, silver, neon and gradient styles, animate it, or convert it to EPS, PDF and DXF.
Free for personal and commercial use with attribution.
