Estimate monthly cloud storage costs including storage, API requests, and data retrieval fees for S3, GCS, or Azure Blob.
Cloud object storage like AWS S3, Google Cloud Storage, and Azure Blob Storage is priced on three dimensions: the amount of data stored, the number of API requests (PUT, GET, LIST), and the volume of data retrieved. This calculator helps you estimate your total monthly cost across all three components.
Storage costs seem low at first glance — often just $0.023/GB/month for standard tiers — but API request charges and retrieval fees can add up quickly at scale, especially for frequently accessed datasets. A billion GET requests alone costs over $400 on S3.
Use this calculator to project costs for different storage tiers (Standard, Infrequent Access, Archive) and optimize your storage strategy by moving cold data to cheaper tiers automatically with lifecycle policies.
Tracking this metric consistently enables technology teams to identify system performance trends and address potential issues before they impact end users or business operations. This measurement provides a critical foundation for capacity planning and performance budgeting, helping teams align infrastructure resources with application requirements and growth projections.
Storage bills have three hidden components: request charges, retrieval fees, and early deletion penalties. Many teams only budget for GB-month storage costs and are surprised when the bill arrives. This calculator reveals the full picture so you can set lifecycle policies, choose the right storage class, and budget accurately. Precise quantification supports capacity planning and performance budgeting, ensuring infrastructure investments are right-sized for both current workloads and projected future growth.
Storage Cost = data_GB × per_GB_rate Request Cost = (PUT_requests_K × PUT_rate + GET_requests_K × GET_rate) Retrieval Cost = retrieval_GB × retrieval_rate Total Monthly = Storage Cost + Request Cost + Retrieval Cost
Result: $125.40/month
Storage: 5,000 GB × $0.023 = $115.00. PUT requests: 100K × $0.005 per 1K = $0.50. GET requests: 1,000K × $0.0004 per 1K = $0.40. Retrieval: 500 GB × $0.01 = $5.00. Total: $120.90/month.
Cloud storage pricing has four components: storage volume (GB-months), API requests (PUT, GET, LIST, DELETE), data retrieval (for non-standard tiers), and data transfer out (egress). Most cost estimates focus only on storage volume, but the other components can be significant at scale.
Standard tier is best for frequently accessed data. Infrequent Access suits data accessed less than once per month. Archive tiers like Glacier are for compliance data, backups, and anything accessed less than once per year. Using lifecycle policies to automatically transition data between tiers is the most effective cost optimization.
Key strategies include compressing data before storage, enabling lifecycle policies, removing incomplete multipart uploads, expiring old object versions, using S3 Intelligent-Tiering for unpredictable access patterns, and regularly auditing storage buckets for orphaned or unnecessary data.
Most providers offer Standard (frequent access), Infrequent Access (lower storage cost, higher retrieval), and Archive (cheapest storage, highest retrieval cost and latency). AWS adds Glacier, Glacier Deep Archive, and Intelligent-Tiering.
At small scale, no. At millions or billions of requests, yes. S3 Standard charges $0.0004 per 1,000 GET requests and $0.005 per 1,000 PUT requests. A high-traffic CDN origin serving billions of GETs can accumulate meaningful request costs.
When using Infrequent Access or Archive tiers, you pay a per-GB fee to retrieve data in addition to storage costs. Standard tier has no retrieval fee. This is separate from data transfer (egress) charges.
Yes. This calculator covers storage, requests, and retrieval. Data transfer out of the cloud (egress) is billed separately. Use the Cloud Egress Cost Calculator for those charges.
S3 versioning keeps all previous versions of objects, and each version counts toward your storage total. Without lifecycle policies to expire old versions, storage costs can grow rapidly. Always set version expiration policies.
Archive tiers like S3 Glacier Deep Archive cost as little as $0.00099/GB/month, but retrieval takes 12+ hours and costs $0.02/GB. For data you rarely need, this is 20x cheaper than Standard. Use lifecycle rules to automate tier transitions.