Azure Disks 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.

Premium Unmanaged Disks and Page blobs

Premium Unmanaged Disks are high performance Solid State Drive (SSD) based Storage designed to support I/O intensive workloads with significantly high throughput and low latency. With Premium Unmanaged Disks, you can provision a persistent disk and configure its size and performance characteristics.

The total cost of Premium Unmanaged Disk depends on the size and number of the disks and will be affected by the number of outbound data transfers. These disk sizes provide different input/output operations per sec (IOPs), throughput caps and monthly price per GB. You choose the option which best meets your required storage size, IOPs and throughput. Attach several persistent disks to a VM and you can configure up to 64 TB of storage per VM and achieve 80,000 input/output operations per second and 1600 MB per second disk throughput per VM at less than one millisecond latency for read operations. Premium Unmanaged Disks are supported by DS-series, DSv2-series, FS-series and GS-series VM sizes which are specifically targeted for Premium Disks.

Snapshots are charged at $-/GB per month.

Disk Types P10 P20 P30 P40 P50 P60
Disk Size 128 GB 512 GB 1 TB 2 TB 4 TB 8 TB
Price per month $- $- $- $- $- $-
IOPs per disk 500 2,300 5,000 7,500 7,500 7,500
Throughput per disk 100 MB / second 150 MB / second 200 MB / second 250 MB / second 250 MB / second 250 MB / second
There are no transaction costs for Premium Disks.

* Azure does not support attaching P60 as a disk to VM yet. P60 will only be supported as page blobs accessible through REST.

Standard Unmanaged Disks and Page blobs

Standard Disks use Hard Disk Drive (HDD) based Storage media. They are best suited for dev/test and other infrequent access workloads that are less sensitive to performance variability.

The total cost of Standard Unmanaged Disk storage depends on the size and number of disks, the number of transactions, and the number of outbound data transfers.

Storage Capacity LRS GRS RA-GRS
First 1 TB / Month $- per GB $- per GB $- per GB
Next 49 TB (1 to 50 TB) / Month $- per GB $- per GB $- per GB
Next 450 TB (50 to 500 TB) / Month $- per GB $- per GB $- per GB
Next 500 TB (500 to 1,000 TB) / Month $- per GB $- per GB $- per GB
Next 4,000 TB (1,000 to 5,000 TB) / Month $- per GB $- per GB $- per GB
Over 5,000 TB / Month Contact us Contact us Contact us

Access Prices

We charge $- per 10,000 transactions for Standard Disks & Page Blobs. Any type of operation against the storage is counted as a transaction, including reads, writes and deletes.


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 datacenter.
Zone Redundant Storage (ZRS) Stores three copies of data across multiple datacenters within or across regions. For block blobs only.
Geographically Redundant Storage (GRS) Same as LRS, plus multiple asynchronous copies to a second datacenter hundreds of miles away.
Read-Access Geographically Redundant Storage (RA-GRS) Same as GRS, plus read access to the secondary datacenter.

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

Support & 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. You can also check the status on the portal 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 1st May and turned off on 5th May, the storage account will be charged for RA-GRS up to 30th May. After that, GRS pricing would start.

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

Blob Storage

  • A Blob Storage Account is a storage account specialised for 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 Account 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 you are using and being charged for Blob Storage Accounts, while “Standard IO – Block Blob (GB)” is the meter associated with the 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 do not 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 Measure 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% * 10M /10,000 = 200 $0.1 $0.05 $20 $10
    10,000 Operations, others 80% * 10M /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 Cool tier adds up to $770.4, vs $1242 in 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 * $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 will only get 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 will only be billed for the storage space used to store the data that is written to the disk, regardless of the allocated disk size.

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



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