---
title: "Sigma Icon | Free Download PNG & SVG | Micro Solid"
product: "Streamline Icons, Illustrations and Elements"
url: /icons/download/sigma--26563
canonical_url: "https://www.streamlinehq.com/icons/download/sigma--26563"
summary: "Sharp solid icon of a bold Greek sigma with rounded ends and an angled center. Used for math, formulas, and summation."
---

# Sigma icon

The Sigma icon shows a bold Greek sigma formed by rounded horizontal bars joined by an angled center. Drawn in the solid style on a 10px grid with filled shapes so it stays clear at small sizes. Use it for mathematical notation, summation controls, formulas, equations, and educational interfaces. It belongs to Micro Solid set in the Micro family.

## Preview

![Sharp solid icon of a bold Greek sigma with rounded ends and an angled center. Used for math, formulas, and summation.](https://assets.streamlinehq.com/image/private/w_240,h_240,ar_1/f_auto/v1/icons/text-formatting/sigma-ezlb1w51m741vfydjfh60v.png/sigma-ufp6yr03fa2p63e17nwrn.png?_a=DATAiZkSZAA0)

## Details

- **Name**: Sigma
- **Type**: Icon
- **Set**: [Micro Solid](/icons/micro-solid.md) — Micro is living proof that size matters. It was built using simplified shapes to ensure legibility at the smallest possible sizes. The Solid style is ideal for projects where quick recognition is crucial, especially effective on dark backgrounds. All Micro Solid icons are designed on a 10px grid using filled shapes.
- **Family**: [Micro](/icons/micro.md) — Designed for interfaces
- **Style**: Solid, Minimal, Bold, Geometric, Glyph, Wireframe
- **Category**: Interface Essential › Text Formatting
- **Default size**: 10px
- **Pricing**: Pro
- **License**: [Commercial](https://home.streamlinehq.com/license-premium)
- **Author**: [Streamline](https://home.streamlinehq.com/)
- **Formats**: PNG, WEBP, PDF, SVG, JSX
- **Tags**: sigma, math, notation, symbol, calculate, greek, alphabet, shapes, line, formatting, text, arrow, font, bold, italic, underline

## Download

- [Download Sigma on Streamline](https://www.streamlinehq.com/icons/download/sigma--26563)

## Also available in other styles

- [Sigma — Micro Line](/icons/download/sigma--26416.md) (Pro)

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