---
title: "What is the difference between CONST and READONLY?"  
description: "What is the difference between CONST and READONLY?"  
author: "Sumit Kesarwani"  
published: 2013-11-13  
updated: 2020-09-18  
canonical: https://www.mindstick.com/interview/1826/what-is-the-difference-between-const-and-readonly  
category: "c#"  
tags: ["c#"]  
reading_time: 1 minute  

---

# What is the difference between CONST and READONLY?

Both are meant for constant values. A const field can only be initialized at the declaration of the field. A readonly field can be initialized either at the declaration or.

## Answers

### Answer by Sumit Kesarwani

Both are meant for constant values. A const field can only be initialized at the declaration of the field. A readonly field can be initialized either at the declaration or.


---

Original Source: https://www.mindstick.com/interview/1826/what-is-the-difference-between-const-and-readonly

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