S3 Cost Calculator

S3 Standard ($0.023/GB)S3 Standard-IA ($0.0125/GB)S3 One Zone-IA ($0.01/GB)S3 Glacier Instant Retrieval ($0.004/GB)S3 Glacier Flexible ($0.0036/GB)S3 Glacier Deep Archive ($0.00099/GB)

GBTB

Monthly Cost Summary

What Is s3 cost calculator?

An S3 cost calculator is an essential tool for developers, DevOps engineers, and financial analysts to estimate the monthly expenses associated with using Amazon Simple Storage Service (AWS S3). At its core, AWS S3 is more than just a place to store files; it is a complex ecosystem of storage tiers, data movement fees, and request costs. Without a proper calculator, many businesses find themselves facing "bill shock" at the end of the month because they underestimated data egress fees or request frequencies. This calculator simplifies the process by aggregating storage rates across different classes like Standard, IA, and Glacier, and factoring in the often-overlooked data transfer and request costs. By using an S3 cost calculator, organizations can align their cloud infrastructure budget with actual usage patterns, ensuring that they select the most cost-effective storage class for their specific workload, whether it is high-frequency access or long-term archival storage.

How the Calculator Works

Our S3 cost calculator utilizes the standard AWS pricing model to provide a comprehensive estimate. It breaks down costs into three primary categories: Storage, Data Transfer, and Requests. First, it calculates storage costs based on the selected tier and volume (GB or TB). Next, it applies the standard egress rate for data moving from S3 to the public internet, which is typically around $0.09 per GB after the free tier. Finally, it calculates API request fees—such as PUT and GET operations—which are billed per 1,000 requests. The tool aggregates these figures to provide a single, easy-to-read monthly total, allowing for rapid "what-if" scenario testing.

Why Use Our Calculator?

1. Prevent Unexpected Overages

Cloud costs can spiral out of control when data egress or request counts spike. Our calculator helps you visualize these costs before you deploy, preventing budgetary surprises.

2. Optimize Storage Tiering

Compare S3 Standard versus S3 Glacier instantly. By seeing the price difference for your specific data volume, you can make informed decisions about lifecycle policies.

3. Simplify Complex AWS Pricing

AWS pricing pages are notoriously difficult to navigate. We condense thousands of lines of documentation into a single interface for your convenience.

4. Better Financial Planning

For startups and enterprises alike, predictability is key. Use our tool to forecast annual storage growth and secure budget approvals with data-backed estimates.

5. Hidden Fee Discovery

Many users forget that API requests cost money. Our tool highlights these fees so you understand exactly where every penny of your cloud spend is going.

How to Use (Step-by-Step)

Step 1: Select your S3 Storage Class. If you access data frequently, choose Standard. For archives, choose Glacier. Step 2: Enter your total storage volume and select the unit (GB or TB). Step 3: Estimate your 'Data Transfer Out.' This refers to data downloaded from S3 to the internet. Step 4: Input your expected number of PUT/POST and GET requests. Step 5: Click 'Calculate' to see your itemized monthly breakdown.

Example Calculations

Example A: A web application storing 1 TB in S3 Standard with 500 GB of egress and 100,000 GET requests. Total cost would involve $23.55 for storage plus egress and request fees, totaling approximately $68.59/month. Example B: A backup system storing 10 TB in Glacier Deep Archive with minimal access. The storage cost would be roughly $10.14/month, showing the massive savings for cold storage compared to Standard.

Use Cases

Our calculator is ideal for Backup & Recovery planning, where storage volume is high but access is low. It is also perfect for Static Website Hosting, where data transfer and GET requests dominate the bill. Data Lakes and AI/ML Training sets also benefit, as engineers can calculate the cost of storing petabytes of raw data across different availability zones. For more information on cloud optimization, visit AWS Pricing Official or Energy.gov Data Guidelines for storage standards.

FAQ

How much does 1TB of S3 storage cost?

In the S3 Standard tier, 1TB of storage costs approximately $23.55 per month, excluding requests and data transfer fees. In Glacier Deep Archive, this drops to about $1.01.

What is data egress in S3?

Data egress, or 'Data Transfer Out,' refers to any data moved from your S3 bucket to the internet or other AWS regions. It is often the most expensive part of an S3 bill.

Is S3 storage ever free?

AWS offers a Free Tier which includes 5GB of S3 Standard storage, 20,000 GET requests, and 2,000 PUT requests per month for the first 12 months.

Does S3 charge for data transfer in?

Generally, Amazon does not charge for data transferred into S3 from the internet. You only pay for the storage and the PUT requests.

Conclusion

Estimating your cloud spend is the first step toward efficient infrastructure management. Whether you are migrating a small project or managing a global enterprise data lake, understanding S3 pricing is critical. Use this S3 cost calculator to refine your budget, explore related tools like our Cloud Cost Analysis guide, and ensure your cloud architecture remains sustainable. For further reading on public cloud standards, check CA.gov Technology resources.