---
title: "Sigma Icon | Free Download PNG & SVG | Ultimate Light"
product: "Streamline Icons, Illustrations and Elements"
url: /icons/download/sigma--8287
canonical_url: "https://www.streamlinehq.com/icons/download/sigma--8287"
summary: "Clean line icon of a Greek sigma formed by two horizontal bars and angled diagonals. Used for math, summation, and formulas."
---

# Sigma icon

The Sigma icon shows a Greek sigma formed by two horizontal bars joined by angled diagonal strokes. Drawn in the line style on a 24px grid with a 1px stroke for clear, airy detail. Use it for summation, formulas, mathematics interfaces, and scientific notation. It belongs to Ultimate Light set in the Ultimate family.

## Preview

![Clean line icon of a Greek sigma formed by two horizontal bars and angled diagonals. Used for math, summation, and formulas.](https://assets.streamlinehq.com/image/private/w_240,h_240,ar_1/f_auto/v1/icons/text-formating/sigma-3ztcfvn872cps3yz1ymtfm.png/sigma-6ttruqsvu175ks3t8neow7.png?_a=DATAiZkSZAA0)

## Details

- **Name**: Sigma
- **Type**: Icon
- **Set**: [Ultimate Light](/icons/streamline-light.md) — Designed by 8 expert designers. Light style features 1px stroke with intricate details, airy design, and generous spacing. Perfect for UI and illustrative elements.
- **Family**: [Ultimate](/icons/ultimate-sets.md) — The encyclopedia of icons
- **Style**: Line, Light, Stroke
- **Category**: Interface Essential › Text Formating
- **Default size**: 24px
- **Stroke width**: 1px
- **Pricing**: Pro
- **License**: [Commercial](https://home.streamlinehq.com/license-premium)
- **Author**: [Streamline](https://home.streamlinehq.com/)
- **Formats**: PNG, WEBP, PDF, SVG, JSX
- **Tags**: sigma, sum, summation, formula, math, series, statistics, calculus, equation, greek, symbol, algebra, total, format, text, font, formatting, bold, italic, arrow, underline

## Download

- [Download Sigma on Streamline](https://www.streamlinehq.com/icons/download/sigma--8287)

## Also available in other styles

- [Sigma — Ultimate Colors](/icons/download/sigma--19617.md) (Pro)
- [Sigma — Ultimate Duotone](/icons/download/sigma--15811.md) (Pro)
- [Sigma — Ultimate Regular](/icons/download/sigma--9018.md) (Pro)
- [Sigma — Ultimate Bold](/icons/download/sigma--7556.md) (Pro)

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