Square Root black filled icon
Outline icon of a square root radical sign with a long horizontal bar
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About the Square Root black filled icon
The bare radical sign: a short lead-in stroke, a deep V, then a long horizontal vinculum running to the right with room for a radicand beneath it. It stands for square roots, radicals and mathematical operations generally. Use it on calculator keypads, scientific app toolbars, math and physics lesson materials, formula editor buttons, and engineering or statistics dashboards.
Uniform thin strokes and an asymmetric wide format keep the glyph true to typeset notation rather than boxing it into a square. The long bar gives the eye a clear baseline. Pairs with pi, sigma and percent marks; center it optically, not geometrically, in round buttons.
This is the solid black filled version of the square root icon: a bold silhouette that reads clearly at 16-24 px and on dark or busy backgrounds, and prints well in one colour.
Get it free as an SVG vector or transparent PNG (16-512px), copy the SVG code, or restyle it in the free online editor — recolor any part, add gold, neon or gradient effects, animate it, or export EPS, PDF and DXF.
Free for personal and commercial use with attribution.
