Sigma Summation black filled icon
Greek capital sigma letter used as the mathematical summation sign
About the Sigma Summation black filled icon
The eighteenth letter of the Greek alphabet drawn in its capital form: two diagonals meeting at a sharp point on the left, closed by short flat serifs at the top and bottom right. Beyond the alphabet it is the standard summation operator. Use it on formula editors, spreadsheet sum buttons, statistics dashboards, math courseware and engineering documentation.
The letter is built from straight strokes only, with the apex set slightly below center so the upper arm reads shorter than the lower one, matching typographic convention. It pairs with pi, delta and infinity marks in the same math set. Center it optically rather than on its bounding box.
This is the solid black filled version of the sigma summation icon: a bold silhouette that reads clearly at 16-24 px and on dark or busy backgrounds, and prints well in one colour.
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.
