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Windows Server License Calculator
Calculate your core-based licensing requirements for Windows Server
Configuration
License Requirements
Enter your server configuration to see license requirements
Datacenter Edition Rules
- • Unlimited virtual machine instances (VMs/OSEs)
- • All physical cores must be licensed
- • Minimum 8 cores per processor
- • Minimum 16 cores per server
Standard Edition Rules
- • 2 VMs included when all cores are licensed
- • For every 2 additional VMs, all cores must be relicensed
- • Uses APOS licenses for additional coverage
- • Same core minimums apply (8 per proc, 16 per server)
Disclaimer: This calculator is for informational purposes only. Product licensing, program licensing, and business rules are subject to change. Always consult with Microsoft or an authorized licensing specialist for final licensing decisions.