Diameter black filled icon
Outline circle with a horizontal double-headed arrow spanning its width
About the Diameter black filled icon
A thin open circle contains a straight horizontal line running through its center, capped with arrowheads at both ends that stop just inside the rim. The reading is immediate: the full width across a round shape. Use it in CAD and drawing toolbars, engineering spec sheets, pipe and fitting catalogs, product dimension tables, and machining or 3D printing settings.
The arrow sits slightly above the vertical midpoint, which keeps the mark optically centered, and its stroke is lighter than the circle so the two elements stay distinct. Pair it with radius, circumference, angle and ruler icons. At small sizes the arrowheads thicken, so 24 px is a sensible floor.
This is the solid black filled version of the diameter 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.
