Why Compare Storage Providers?

Object storage underpins many websites, backup strategies, and data pipelines. While Amazon S3, Microsoft Azure Blob Storage, and Google Cloud Storage all offer similar durability and scalability, their pricing structures differ. Costs are typically based on how many gigabytes you store, how much data you retrieve, and how much bandwidth you transfer out each month. This calculator lets you quickly compare each provider side by side, highlighting potential savings when moving large archives or serving files globally.

Pricing Model

To keep the comparison readable, we use representative rates for standard storage classes in common regions. In practice, rates vary by region and tier, but these numbers offer a good starting point:

Provider	Storage per GB	Retrieval per GB	Transfer per GB
AWS S3	$0.023	$0.01	$0.09
Azure Blob	$0.0208	$0.005	$0.087
Google Cloud	$0.026	$0.01	$0.12

Enter your expected storage volume, the amount you retrieve for processing, and how much data leaves the provider's network. The calculator multiplies each figure by the corresponding rate and displays the monthly totals in a table.

Example Calculation

Suppose you store 1 TB of data, retrieve 50 GB for updates, and transfer 200 GB to users each month. The estimated costs would be roughly $29.80 for AWS, $26.35 for Azure, and $40.20 for Google Cloud. Because rates change and discounts may apply for large volumes or long-term commitments, consider these results a baseline for comparison rather than an exact quote.

Putting the Numbers in Context

Storage costs are just one factor in choosing a cloud provider. Features like lifecycle management, regional availability, access control, and ecosystem integration may outweigh small price differences. However, understanding the financial impact of your data footprint helps you budget more accurately and negotiate with vendors. Use this calculator during project planning or when auditing existing storage strategies for possible savings.