---
title: Variables
description: Flux variables hold values. A variable can only hold values defined by its type.
menu:
  influxdb_2_0_ref:
    parent: Flux specification
    name: Variables
weight: 214
---

A **variable** represents a storage location for a single value.
Variables are immutable.
Once a variable is given a value, it holds that value for the remainder of its lifetime.