---
title: "Big-O Notation"
description: "Easy to understand explanation of Big-O notation without any fancy terms"
author:
  name: "Kamran Ahmed"
  url: "https://twitter.com/kamranahmedse"
  imageUrl: "/authors/kamranahmedse.jpeg"
seo:
  title: "Big-O Notation - roadmap.sh"
  description: "Easy to understand explanation of Big-O notation without any fancy terms"
isNew: false
type: "visual"
date: 2021-03-15
sitemap:
  priority: 0.7
  changefreq: "weekly"
tags:
  - "guide"
  - "visual-guide"
  - "guide-sitemap"
---

Big-O notation is the mathematical notation that helps analyse the algorithms to get an idea about how they might perform as the input grows. The image below explains Big-O in a simple way without using any fancy terminology. 

[![Big-O Notation](/guides/big-o-notation.png)](/guides/big-o-notation.png)