AWS S3 Cost Calculator
Estimate your monthly Amazon S3 storage and data transfer costs with this calculator. Prices are based on typical US East (N. Virginia) region rates and are for estimation purposes only. Actual costs may vary based on region, specific usage patterns, and AWS pricing changes.
Storage Costs (per month)
Data Transfer Out (per month)
Requests (per month)
Estimated Monthly Cost
Enter your usage details and click "Calculate S3 Cost" to see your estimate.
Understanding AWS S3 Costs
Amazon Simple Storage Service (S3) is a highly scalable, durable, and available object storage service. While S3 offers incredible flexibility, understanding its pricing model is crucial for managing cloud expenses. S3 costs are primarily driven by several factors:
1. Storage Used
This is the most straightforward cost component. You pay for the amount of data you store in S3, measured in "GB-months." AWS offers different storage classes, each with a distinct price point and use case:
- S3 Standard: Designed for frequently accessed data, offering high durability and availability. It's the most expensive per GB but has no retrieval fees.
- S3 Standard-Infrequent Access (S3 Standard-IA): For data that is accessed less frequently but requires rapid access when needed. It's cheaper per GB than Standard but incurs a small retrieval fee per GB.
- S3 Glacier: Optimized for archiving data that is rarely accessed. It's the cheapest per GB but has retrieval fees and retrieval times that can range from minutes to hours.
- (Note: Other classes like S3 One Zone-IA, S3 Glacier Deep Archive, and Intelligent-Tiering exist but are not included in this simplified calculator for brevity.)
2. Data Transfer Out
AWS charges for data transferred out of S3 to the internet. Data transferred into S3 (uploading) is generally free. Data transfer between S3 buckets within the same AWS region is also typically free. However, transferring data out to other AWS regions or to the public internet incurs charges. The first 1 GB of data transfer out to the internet each month is usually free.
3. Requests
You are charged for the number of requests made to your S3 buckets. These requests include:
- PUT, COPY, POST, LIST Requests: These are typically write operations or listing objects within a bucket. They are generally more expensive per 1,000 requests than GET requests.
- GET, SELECT Requests: These are read operations, retrieving data from your S3 buckets. They are less expensive per 1,000 requests.
The number of requests can add up quickly, especially for applications with high read/write volumes.
How the Calculator Works
This calculator uses simplified pricing based on typical US East (N. Virginia) rates. It takes your estimated monthly usage for different storage classes, data transfer out, and request types, then applies the corresponding per-unit costs to provide an estimated total monthly bill.
- S3 Standard Storage: $0.023 per GB-month
- S3 Standard-IA Storage: $0.0125 per GB-month
- S3 Glacier Storage: $0.004 per GB-month
- Data Transfer Out: First 1 GB free, then $0.09 per GB
- PUT/COPY/POST/LIST Requests: $0.005 per 1,000 requests
- GET/SELECT Requests: $0.0004 per 1,000 requests
Example Calculation:
Let's say you have the following monthly usage:
- S3 Standard Storage: 100 GB
- S3 Standard-IA Storage: 500 GB
- S3 Glacier Storage: 2000 GB
- Data Transfer Out: 50 GB
- PUT/COPY/POST/LIST Requests: 10,000
- GET/SELECT Requests: 100,000
Here's how the costs would break down:
- Standard Storage: 100 GB * $0.023/GB = $2.30
- Standard-IA Storage: 500 GB * $0.0125/GB = $6.25
- Glacier Storage: 2000 GB * $0.004/GB = $8.00
- Data Transfer Out: (50 GB – 1 GB free) * $0.09/GB = 49 GB * $0.09/GB = $4.41
- PUT Requests: (10,000 / 1,000) * $0.005 = 10 * $0.005 = $0.05
- GET Requests: (100,000 / 1,000) * $0.0004 = 100 * $0.0004 = $0.04
- Total Estimated Monthly Cost: $2.30 + $6.25 + $8.00 + $4.41 + $0.05 + $0.04 = $21.05
Use the calculator above to get your own personalized estimate!