Azure File Storage Pricing

Reliable, economical cloud storage for data big and small

Azure has five types of storage: Blobs, Files, Disks, Tables and Queues. See how they work

Your total cost depends on how much you store, the volume and type of storage transactions and outbound data transfers, and which data redundancy option you choose. See how they compare in the “Data Redundancy Options” section.

File Storage

File Storage is now generally available. It uses industry standard SMB 3.0 protocol. Share files between applications running in your virtual machines using familiar Windows APIs or File REST API.

Learn more

Storage prices

These are the costs of storing your data in File Storage. The prices shown below are the monthly charges per GB of data stored. These prices vary based on the redundancy option that you choose.

$- per GB $- per GB

Access prices

These are the costs of SMB operations against your File data. These prices can vary based on the redundancy option that you choose.

Put, Create Container Operations (per 10,000) $- $-
List Operations (per 10,000) $- $-
All other operations except Delete, which is free (per 10,000) $- $-


Transfer large amounts of data to and from Azure using hard disk drives. Learn more

Data redundancy options

Locally Redundant Storage (LRS) Makes multiple synchronous copies of your data within a single data centre.
Zone Redundant Storage (ZRS) Stores three copies of data across multiple data centres within or across regions. For Block Blobs only.
Geographically Redundant Storage (GRS) Same as LRS, plus multiple asynchronous copies to a second data centre hundreds of miles away.
Read-Access Geographically Redundant Storage (RA-GRS) Same as GRS, plus read access to the secondary data centre.

For more details on redundancy options and how they can be used for high availability, please refer to the Azure Storage replication page. Please note that not all redundancy types are available for all storage types.

Support and SLA

  • Free billing and subscription management support.
  • Flexible support plans starting at $29.0/month. Shop for a plan
  • Guaranteed 99.9% or greater availability (excludes preview services). Read the SLA



  • Yes. Storage capacity is billed in units of the average daily amount of data stored, in gigabytes (GB), over a monthly period. For example, if you consistently used 10 GB of storage for the first half of the month and none for the second half of the month, you would be billed for your average usage of 5 GB of storage.

  • Storage accounts by default are set up to be geographically redundant. You can change these settings to read-access geographically redundant or locally redundant through the Microsoft Azure classic portal or the service management API. From there, you can also check the status on using the service management API.

  • Storage accounts will be charged for a minimum of 30 days from the time the service is enabled. For example, if RA-GRS is turned on on 1 May and turned off on 5 May, the storage account will be charged for RA-GRS until 30 May. After that, GRS pricing would start.

    If RA-GRS is turned on on 1 May and turned off on 14 June, RA-GRS would be charged until 14 June. On 15 June, GRS pricing would take effect.

Blob Storage

  • A Blob Storage Account is a storage account specialised in storing data as blobs and allows users to specify an access tier based on the frequency of access for the data in that account. General-purpose storage accounts can be used to store Blobs, as well as Files, Disks, Tables and Queues.

  • No. Block Blob prices in general-purpose Storage Accounts have not changed and can be seen here.

  • If you see “Hot” or “Cool” in the resource name, it means that the charge is associated with Blob Storage Accounts. For example, when you see “Standard IO – Cool Block Blob (GB)” in your bill, it means that you are using and being charged for Blob Storage Accounts, while “Standard IO – Block Blob (GB)” is the meter associated with use of Block Blobs in general-purpose storage accounts.

  • When you create a Blob Storage Account, you can set the access tier as Cool or Hot. Cool tier has a lower cost of storing data but a higher cost of accessing data, and it should be used for data that is not frequently accessed, and has lower availability SLA requirements. If you don’t know the access pattern for your data, we recommend that you start with the Hot tier for at least a month, and then determine whether you can save costs by moving to Cool storage based on your actual usage. See the example below.


    You have 50 TB of data that you want to store in Blob Storage in US East 2 region. You send 10 M HTTP operations to the account every month, 20% of which are Put Blob/Block, List and Create Container operations. You read 20 TB of data from the account every month, and write 10 TB of data. This is how your total cost will be calculated in Hot vs Cool.

    Unit of measurement Usage volume Price in Cool Price in Hot Monthly cost in Cool Monthly cost in Hot
    GB per month 50*1,024= 51,200 $0.01 $0.024 $512 $1228.8
    10,000 Put Blob/Block, List, Create Container operations 20% * 10 million/10,000 = 200 $0.1 $0.05 $20 $10
    10,000 operations, others 80% * 10 million/10,000 = 800 $0.01 $0.004 $8 $3.2
    GB of data retrieved 20 * 1,024 = 20,480 $0.01 $0 $204.8 $0
    GB of data written 10 * 1,024 = 10,240 $0.0025 $0 $25.6 $0
    Total monthly cost $770.4 $1242

    In this example, the total monthly cost of the Cool tier is $770.4, compared to $1242 in the Hot tier. You will realise substantial cost savings by moving your data to the Cool tier in this example.

  • You will be charged for Data Retrieval when you toggle your Blob Storage Account from Cool to Hot, for example, if you have 100 GB of data in a Blob Storage Account and you toggle that account from Cool to Hot, you will be charged 100 x $0.01 = $1 for Data Retrieval.

  • No – If you toggle your account from Hot to Cool, you will not be charged for Data Writes. You are only charged for Data Writes if you directly write data to your Blob Storage Account with Cool access tiers.

  • When you write data into GRS accounts, that data will be replicated to another Azure region. The Geo-Replication Data Transfer charge is the bandwidth cost of replicating that data to another Azure region.

Disk Storage

  • If the empty 100 GB disk is backed by a Premium Storage Account, then you will be charged for a P0 (128 GB) disk. If any other type of Storage Account is used, then you’ll only be billed for the storage space used to store the data that’s written to the disk, regardless of the allocated disk size.

  • Yes. 99.9% read/write availability also applies to Premium Storage Accounts.



Estimate your monthly costs for Azure services

Purchase FAQs

Review Azure pricing frequently asked questions

Product details

Learn more about Storage


Review technical tutorials, videos and more resources

Sign up now and get $200 in Azure credits

Start today