---
title: "Sigma Icon | Free Download PNG & SVG | Core Duo - Free"
product: "Streamline Icons, Illustrations and Elements"
url: /icons/download/sigma--26749
canonical_url: "https://www.streamlinehq.com/icons/download/sigma--26749"
summary: "Sharp duotone icon of a Greek sigma with two bars joined by diagonals. Used for math, sums, and formulas."
---

# Sigma icon

The Sigma icon shows a Greek capital sigma formed by two horizontal bars connected by diagonal strokes. Drawn in the duotone style on a 14px grid with a 1px stroke so its clean geometry stays legible at small sizes. Use it for mathematics, summation tools, formulas, statistics, and academic interfaces. It belongs to Core Duo - Free set in the Core family.

## Preview

![Sharp duotone icon of a Greek sigma with two bars joined by diagonals. Used for math, sums, and formulas.](https://assets.streamlinehq.com/image/private/w_300,h_300,ar_1/f_auto/v1/icons/interface-essential/sigma-rfvv2cuxdiw08jpnl53z9.png/sigma-qq9cvx31l2rugk4rxd6j6n.png?_a=DATAiZkSZAA0)

## Details

- **Name**: Sigma
- **Type**: Icon
- **Set**: [Core Duo - Free](/icons/core-duo-free.md) — Core is the Helvetica of icons. The Free Duo variant uses dual tones for a sophisticated color approach. Licensed under the Creative Commons - CC BY 4.0
- **Family**: [Core](/icons/core-sets.md) — Minimal icons
- **Style**: Duo
- **Category**: Interface Essential › Interface Essential
- **Default size**: 14px
- **Stroke width**: 1px
- **Pricing**: Free
- **License**: [Free](https://home.streamlinehq.com/license-free)
- **Author**: [Streamline](https://home.streamlinehq.com/)
- **Formats**: PNG, WEBP, PDF, SVG, JSX
- **Tags**: sigma, sum, formula, chevron, format, formatting, triangle, arrow, video, media, control, text, pointer, play, forward, start

## Download

- [Download Sigma on Streamline](https://www.streamlinehq.com/icons/download/sigma--26749)

## Also available in other styles

- [Sigma — Core Line - Free](/icons/download/sigma--26733.md) (Free)
- [Sigma — Core Solid - Free](/icons/download/sigma--26750.md) (Free)
- [Sigma — Core Pop - Free](/icons/download/sigma--31924.md) (Free)
- [Sigma — Core Flat - Free](/icons/download/sigma--26781.md) (Free)
- [Sigma — Core Gradient - Free](/icons/download/sigma--29645.md) (Free)
- [Sigma — Core Neon - Free](/icons/download/sigma--31906.md) (Free)
- [Sigma — Core Remix - Free](/icons/download/sigma--29661.md) (Free)

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