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Microsoft 365 License Cost Calculator

Organizations waste 30-40% of their Microsoft 365 budget on unused or oversized licenses. Your audit tool knows where—but can’t tell you how much.

Here is a free license calculator to estimate your actual needs.

"How much are you wasting?"

Microsoft 365 License Cost Calculator | 365TUNE
License Cost Calculator

Answer six strategic questions to receive an optimized Microsoft 365 license mix that balances capabilities with cost, using current public list pricing and your custom growth buffer.

Cost Optimization Logic
Smart Add-ons
Frontline Plans
Security Assessment
Step 1 of 6 — Company Profile
Who are we optimizing for?

Basic profile details help us determine the right plan family (Business vs. Enterprise). Your buffer percentage will be applied to calculate the recommended license count for growth and flexibility.

Current employees + contractors needing licenses
Add buffer for growth, turnover, and flexibility (typically 15-25%)
%
Step 2 of 6 — Workforce Mix
How do your people work?

Understanding your workforce patterns helps us map users to the most cost-effective license tiers. Desktop Office users need full applications, while web users can use lighter plans.

No dedicated PC, primarily mobile or shared devices (retail, healthcare, manufacturing)
%
%: 0% #: 0 users
Need full Word, Excel, PowerPoint installed on Windows/Mac (not web versions)
%
%: 0% #: 0 users
Step 3 of 6 — Apps & Collaboration
Productivity & collaboration needs

Enter the number of users needing each level of email/mailbox and Teams functionality. This helps us determine base plans and evaluate cost-effective add-ons.

How many users need each mailbox size?
0 users 0%
0 users 0%
0 users 0%
How many users need each level of Teams functionality?
0 users 0%
0 users 0%
0 users 0%
Number of users needing PSTN calling and enterprise telephony
Number of users needing analytics, dashboards, and report creation
If pilot or broad: approximate percentage of users
% of total users
Step 4 of 6 — Security & Compliance
Risk, security & compliance posture

Security requirements help us decide between E3 + add-ons vs. E5, and determine how many users need advanced protection.

Who needs advanced threat protection, DLP, and enhanced security?
Step 5 of 6 — Windows & Final Notes
Windows licensing & additional considerations

Windows Enterprise features can influence whether full Microsoft 365 suites provide better value than Office-only SKUs.

Step 6 of 6 — Get Your Report

Get Your Personalized Report

Enter your details to receive your license optimization recommendations

We used to spend a lot of time scripting and excel sheets. Now everything is just clicks away.
IT Director
Manufacturing Company

Get Started in 3 Steps

1. Connect

Securely connect to your Microsoft tenant data with few clicks

2. Discover

Initial scan identifies optimization opportunities instantly

3. Optimize

Implement recommendations and track savings month over month

What’s Missing in Traditional Audit-Only Tools?

No Financial Context for Audit Events

When Admindroid shows you 150 inactive users, that’s operationally useful. But without cost overlay, you can’t answer:

  • Which inactive licenses are E5 ($38/month) vs. E1 ($8/month)?
  • What’s the total monthly burn rate for these unused seats?
  • Which departments or managers are responsible for the largest waste?

 

Without dollar values, audit data remains an IT problem—not a business solution.

No Cost Attribution or Chargeback Capability

Finance teams increasingly demand license cost allocation for effective inter company recharging:

  • Department or business unit
  • Cost center or project code
  • Manager hierarchy
  • Regional report

 

Traditional audit tools weren’t designed for this. They track user activity, not organizational spending

Stop Guessing. Start Optimizing.

Every day without cost visibility is another day of wasted budget. Organizations with 1,000+ Microsoft 365 users find an average of $47,000 in annual savings within the first quarter.

⚡ No Credit card required, Start your Free 14 Days Trial

Who is it for?

365TUNE is a secure and intelligent Microsoft 365 reporting tool designed for IT leaders, Finance teams and IT administrators. Get complete visibility into your Microsoft 365 environment, optimize license usage, and reduce unnecessary costs—all while ensuring compliance with enterprise security standards.

Finance Teams

365TUNE bridges the gap between IT and finance by delivering transparency into Microsoft 365 costs. Finance teams gain access to detailed cost analysis and usage data, enabling them to work closely with IT to optimize budgets, avoid overspending, and ensure financial accountability.

IT Leaders

For IT leaders focused on strategy, 365TUNE offers a big-picture view of Microsoft 365 usage and costs. It enables them to align IT spending with business goals, improve collaboration with finance teams, and ensure the organization is leveraging its Microsoft 365 investment effectively. With real-time analytics and forecasting tools, IT leaders can drive smarter decision-making and future-proof their IT strategy.

IT Administrators

365TUNE simplifies day-to-day license management, automates reporting, and provides actionable data to enhance efficiency. With features like real-time usage tracking, automated alerts, and detailed user access logs, IT administrators can resolve issues quickly, optimize license allocation, and maintain compliance with ease.

Managed Service Providers

For MSPs, 365TUNE offers a big-picture view of Microsoft 365 usage and costs for their customers. It enables them to align IT spending with business goals, improve collaboration with finance teams, and ensure the organization is leveraging its Microsoft 365 investment effectively. With real-time analytics and forecasting tools, IT leaders can drive smarter decision-making and future-proof their IT strategy.