Microsoft Sentinel Pricing Calculator

An intelligent tool to estimate your monthly costs for Microsoft Sentinel, the cloud-native SIEM and SOAR solution. Understand the key factors that drive your spending and optimize your security budget.

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What is the Microsoft Sentinel Pricing Calculator?

The Microsoft Sentinel Pricing Calculator is a specialized tool designed to provide a close estimate of your monthly expenditure when using Microsoft’s cloud-native Security Information and Event Management (SIEM) solution. Microsoft Sentinel’s pricing can be complex, influenced by multiple variables. This calculator simplifies the process by breaking down the costs into their core components: data ingestion and data retention. By adjusting inputs like daily data volume, Azure region, and pricing models, you can create a reliable budget forecast for your security operations.

Microsoft Sentinel Pricing Formula and Explanation

The total cost of Microsoft Sentinel is primarily the sum of two main charges: the cost to ingest your data for analysis and the cost to store that data over time. The formula is:

Total Monthly Cost = Monthly Data Ingestion Cost + Monthly Data Retention Cost

Data Ingestion is priced per gigabyte (GB) and varies based on your chosen model: Pay-As-You-Go (PAYG) or a Commitment Tier. Commitment Tiers provide a discounted rate for a fixed daily data volume, making them ideal for organizations with predictable data flow. Data Retention is the cost to store your logs in Azure Log Analytics, with the first 90 days typically being free. The microsoft sentinel pricing calculator above models these factors to provide an accurate estimate.

Key Variables in Sentinel Pricing

Variable	Meaning	Unit	Typical Range
Daily Data Ingestion	The volume of security logs and events analyzed by Sentinel each day.	GB / day	10 – 10,000+
Pricing Tier	The billing model selected. PAYG is flexible, while Commitment Tiers offer discounts.	N/A	PAYG / Commitment
Data Retention	The duration for which logs are stored for compliance and historical analysis.	Months	3 – 24+
Azure Region	The physical location of the datacenter where your data is processed and stored.	Location	East US, West Europe, etc.

Practical Examples

Example 1: Small Business (Pay-As-You-Go)

A small company wants to monitor its critical assets and estimates about 20 GB/day of data ingestion in the East US region. They need to keep logs for 6 months for compliance.

• Inputs: 20 GB/day, East US, Pay-As-You-Go, 6 Months Retention.
• Calculation: The calculator would use the PAYG rate for 20 GB daily. The retention cost would apply for 3 of the 6 months (since the first 3 are free).
• Result: This scenario highlights the direct, flexible cost structure of PAYG, suitable for lower data volumes.

Example 2: Enterprise (Commitment Tier)

A large enterprise ingests a steady 450 GB/day in West Europe. They choose a 500 GB/day Commitment Tier to get a better rate and have a data retention policy of 12 months.

• Inputs: 450 GB/day, West Europe, Commitment Tier (500 GB), 12 Months Retention.
• Calculation: The calculator applies the fixed daily cost of the 500 GB tier. Since ingestion (450 GB) is within the tier, there are no overage charges. Retention costs are calculated for 9 months (12 total – 3 free).
• Result: This demonstrates the significant savings achievable with Commitment Tiers for high-volume, predictable workloads. Using a microsoft sentinel pricing calculator is essential for such planning. For more, see our guide on how to manage cloud security costs.

How to Use This Microsoft Sentinel Pricing Calculator

Using this calculator is a straightforward process to help you plan and budget.

1. Enter Daily Data Ingestion: Start by estimating the total amount of data in gigabytes (GB) you expect to send to Microsoft Sentinel each day. This is the single most important factor in determining cost.
2. Select Azure Region: Choose the Azure region where your Log Analytics workspace will be located. Prices can differ substantially between regions.
3. Choose Your Pricing Tier: Select ‘Pay-As-You-Go’ for maximum flexibility or ‘Commitment Tier’ if you have a consistent data volume above 100 GB/day and want to secure a discount.
4. Select Commitment Level (if applicable): If you chose a Commitment Tier, select the daily data volume you wish to commit to.
5. Set Data Retention: Enter the total number of months you need to store your data. The calculator automatically factors in the 90-day free retention period.
6. Analyze the Results: The calculator instantly provides a total estimated monthly cost, broken down into ingestion and retention charges, allowing you to see exactly where your money is going. You might find our advanced security analytics guide useful here.

Key Factors That Affect Microsoft Sentinel Pricing

Understanding what influences your bill is critical for cost management. Here are the primary factors:

• Data Ingestion Volume: This is the most significant cost driver. The more data you analyze, the higher the cost.
• Pricing Tier Selection: Choosing a Commitment Tier can reduce your per-GB cost by up to 65% compared to Pay-As-You-Go, but requires a 31-day commitment.
• Data Retention Duration: While the first 90 days are free, storing data for longer periods for compliance or forensic analysis will add to your monthly bill.
• Azure Region: Costs for both ingestion and retention are not uniform across the globe. Some regions are more expensive than others.
• Data Source Types: Certain Microsoft 365 data sources can be ingested for free, which can lower your overall cost. For example, Microsoft 365 E5 customers receive a data grant.
• Data Filtering and Optimization: Implementing data collection rules to filter out low-value “noisy” logs before they are ingested can drastically reduce volume and, therefore, cost. Check our data optimization strategies page for tips.

Frequently Asked Questions (FAQ)

What is the main difference between Pay-As-You-Go and Commitment Tiers?

Pay-As-You-Go bills you for the exact amount of data you ingest at a standard rate. Commitment Tiers bill you a fixed daily amount for a reserved data capacity (e.g., 100 GB/day), offering a significant discount on the per-GB price.

Is Azure Log Analytics cost included in the Sentinel price?

Yes, with the simplified pricing tiers introduced in 2023, the price you pay for Microsoft Sentinel data ingestion includes the cost for the underlying Azure Log Analytics storage for that data.

How long is data retention free?

Data retention in Azure Log Analytics (and thus for Sentinel) is typically free for the first 90 days. Our microsoft sentinel pricing calculator accounts for this automatically.

What happens if I ingest more data than my Commitment Tier allows?

Any usage above your committed daily volume is billed at the same effective per-GB rate as your tier, so you continue to receive the discount on overage data.

Does this calculator include costs for SOAR playbooks (Logic Apps)?

No. This calculator focuses on the primary costs of Sentinel (ingestion and retention). Costs for Logic Apps (used for automation/SOAR), data export, or other connected Azure services are billed separately.

How accurate is this calculator?

This calculator uses publicly available pricing data to provide a highly reliable estimate for budgeting purposes. However, for an official quote, you should always use the Azure Pricing Calculator and consult with a Microsoft representative.

Can I change my Commitment Tier?

Yes, you can upgrade to a higher Commitment Tier at any time. Downgrading to a lower tier or switching back to PAYG is possible after a 31-day commitment period.

What are the free data sources for Microsoft Sentinel?

Microsoft offers several data sources for free, including Azure Activity Logs, Office 365 Audit Logs, and alerts from Microsoft Defender solutions. This is a key part of the total cost of ownership analysis.

Related Tools and Internal Resources

Explore these resources to further enhance your cloud security and cost management strategy:

• Cloud Security Posture Management (CSPM) Tools: Learn about tools that help you identify and remediate misconfigurations.
• SIEM vs. SOAR: What’s the Difference?: A detailed comparison to help you understand the technologies behind Sentinel.
• Threat Intelligence Platforms: Discover how integrating threat feeds can enhance Sentinel’s detection capabilities.