# Cost & Usage Breakdown
## Overview
The **Cost & Usage Breakdown** tab gives you full visibility into how your S3 bucket is incurring costs.
### Date Range
Use the date range selector at the top of the page to adjust the analysis period. All values update to reflect the selected time window.
## Breakdown by Cost Categories
The **Cost & Usage Breakdown** presents a unified table containing multiple cost components, each displaying:
* **Metric / Cost Component** – The category of the charge
* **Cost** – Total cost incurred during the selected date range
* **Value** – Corresponding usage metric (e.g., GB stored, number of requests, GB transferred)
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## TIP
Some rows include a View button that opens the respective metrics graphs for deeper analysis.
{% endhint %}
{% hint style="danger" %}
## NOTE
**Only categories with actual cost or usage data** for the selected time range will appear in the table. **Empty or non-applicable categories** are **automatically excluded** to keep the view relevant and focused.
{% endhint %}
### Total Cost
| Component | Description |
| ---------- | ----------------------------------------------------- |
| Total Cost | Aggregated total S3 bucket cost across all categories |
### Storage Costs
| Subcategory | Description |
| -------------------------- | ---------------------------------- |
| Standard | Standard storage class |
| Standard-IA | Infrequent Access |
| One Zone-IA | One zone infrequent access |
| Glacier | Long-term archive storage |
| Glacier Deep Archive | Cheapest, long-term archive |
| Glacier Flexible Retrieval | Archive with flexible access |
| Glacier Instant Retrieval | Instant retrieval archive |
| Express One Zone | Single-zone, low-latency storage |
| Reduced Redundancy | Legacy option for lower durability |
| Intelligent Tiering | Auto-tiering based on access |
Storage Metrics View
Storage Metrics show how your bucket’s storage size and object count change over time. These insights help track growth and cost trends.
| **Graph Name** | **Metrics Displayed** | **Description** |
| -------------- | ----------------------------- | ---------------------------------------------------------------------------------------------------------------------------------- |
| Total Storage | Cost, Storage Size (GB), Time | Displays how much storage (in GB) is used over time and its associated cost. Helps identify growth trends and cost drivers. |
| Object Count | Object Count, Time | Shows the total number of stored objects over time. Useful for understanding object-level data sprawl and management implications. |
### Requests & API Calls
| Subcategory | Description |
| --------------------------- | ------------------------------ |
| PUT Requests | Upload object operations |
| POST Requests | Form-based uploads |
| LIST Requests | List bucket contents |
| COPY Requests | Copy objects within buckets |
| GET Requests | Read/download object |
| SELECT Requests | Query objects with S3 Select |
| Multipart Upload Operations | Upload large objects in parts |
| HEAD Requests | Fetch object metadata |
| Messaging Delete Operations | Delete object notification ops |
Request & API Calls Metrics View
This view helps you analyze the operational load on your bucket and the associated costs of API requests, segmented by request type.
#### Write & List Operations
| **Graph Name** | **Metrics Displayed** | **Description** |
| ------------------------- | ------------------------- | ------------------------------------------------------------------------------------------------------- |
| List Bucket | Request Count, Time | Shows the number and cost of `ListBucket` operations. Useful for identifying listing-heavy usage. |
| Put Object | Request Count, Cost, Time | Tracks `PutObject` requests, reflecting how often new data is uploaded and its cost implications. |
| Copy Object | Request Count, Cost, Time | Monitors `CopyObject` actions, used when duplicating objects. Helps track internal data movement costs. |
| Upload Part | Request Count, Cost, Time | Captures multipart upload activity. Indicates frequency and cost of large object uploads. |
| Initiate Multipart Upload | Request Count, Cost, Time | Shows how often multipart uploads are started. Helps detect incomplete uploads or cost spikes. |
| Complete Multipart Upload | Request Count, Cost, Time | Tracks completions of multipart uploads. Used to assess efficiency and completion rate. |
#### Read Operations
| **Graph Name** | **Metrics Displayed** | **Description** |
| ------------------- | ------------------------- | ----------------------------------------------------------------------------------------------------- |
| Head Object | Request Count, Time | Displays metadata fetches (`HeadObject`). Indicates automated or monitoring access to stored objects. |
| Get Object | Request Count, Cost, Time | Tracks object retrievals, critical for understanding download behavior and its financial impact. |
| Read Object Tagging | Request Count, Time | Shows tagging data fetches. Highlights costs tied to metadata access and governance practices. |
### Data Transfer Costs
| Subcategory | Description |
| ------------------------------- | -------------------------------- |
| Intra-Region Data Transfer Out | Transfers within the same region |
| Inter-Region Data Transfer Out | Transfers across AWS regions |
| Data Transfer Out via Internet | Public internet transfers |
| Data Transfer Out to CloudFront | Edge-optimized transfers |
Data Transfer Metrics View
This view provides visibility into data movement trends, helping you assess cost implications and optimize your data transfer strategies.
| **Graph Name** | **Displays** | **Description** |
| ---------------------------------- | --------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Bucket to Internet Transfer** | Transfer Cost, Transfer Size (GB), Time | Tracks the volume of data transferred from your S3 bucket to the internet, alongside its associated cost over time. Useful for identifying spikes in public access or data sharing. |
| **Cross-Region Outbound Transfer** | Transfer Size (GB), Time | Visualizes the amount of data moved from your bucket to other AWS regions over time. Helps monitor inter-region sync activity. |
***
### Lifecycle Costs
| Subcategory | Description |
| ------------------- | ----------------------------------- |
| Transitions | Automatic storage class changes |
| Early Deletion Fees | Charges for premature deletions |
| Restore Requests | Costs to restore from archive tiers |
### Replication Costs
| Subcategory | Description |
| ------------------------- | ------------------------------------ |
| Replication Request Costs | Charges for cross-region replication |
### Intelligent Tiering Costs
| Subcategory | Description |
| --------------------------- | --------------------------- |
| Frequent Access Tier | Regularly accessed objects |
| Infrequent Access Tier | Objects accessed less often |
| Archive Access Tier | Long-term archival tier |
| Deep Archive Access Tier | Coldest storage tier |
| Archive Instant Access Tier | Fast access to archive data |
| Monitoring & Automation | Cost of tiering decisions |
### Data Retrieval & Restore Costs
| Subcategory | Description |
| ---------------------------- | ----------------------------- |
| Data Retrieval | Retrieval from archive tiers |
| Data Restore | Restore request charges |
| Bulk Retrieval Requests | High-volume archive retrieval |
| Expedited Retrieval Requests | Faster access at higher cost |
### Other Costs
| Component | Description |
| ----------- | ------------------------------ |
| Other Costs | Any cost not categorized above |
Use this breakdown to understand your S3 costs in detail. For actionable recommendations, check the [**Insights**](/optimize-cost-savings-and-recommendations/s3-optimization/s3-insights.md) page next.
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