Price an Azure VM fleet across 730 monthly hours with reserved-instance terms, Windows licensing and Azure Hybrid Benefit.
Azure meters a VM per second but bills a full month as 730 hours, so the compute line is simply rate × hours × instances. A reservation replaces the pay-as-you-go rate with a lower committed rate for the whole term, while the Windows Server licence is a separate per-vCPU meter that Azure Hybrid Benefit removes when you bring a Software Assurance licence. Compute is usually the largest line on an Azure invoice, and the same VM can differ by more than 60% between pay-as-you-go and a 3-year reservation with Hybrid Benefit — confirm the current rates in the Azure pricing calculator for your region before you commit.
Azure VM Cost
monthly = VMs × compute rate × 730 × commitment factor + VMs × vCPUs × Windows licence rate × 730 (licence dropped under Azure Hybrid Benefit).
monthly = VMs × compute rate × 730 × commitment factor + VMs × vCPUs × Windows licence rate × 730 (licence dropped under Azure Hybrid Benefit). Azure meters a VM per second but bills a full month as 730 hours, so the compute line is simply rate × hours × instances. A reservation replaces the pay-as-you-go rate with a lower committed rate for the whole term, while the Windows Server licence is a separate per-vCPU meter that Azure Hybrid Benefit removes when you bring a Software Assurance licence.
Compute is usually the largest line on an Azure invoice, and the same VM can differ by more than 60% between pay-as-you-go and a 3-year reservation with Hybrid Benefit — confirm the current rates in the Azure pricing calculator for your region before you commit.
This calculator takes 8 inputs: Number of VMs, Compute rate per VM, Billed hours per month, Commitment term, Operating system, vCPUs per VM, Windows licence rate, Apply Azure Hybrid Benefit. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.
No. A reserved VM instance discounts only the compute meter. The Windows Server licence continues to bill per vCPU-hour unless you apply Azure Hybrid Benefit, which is why the two lines are separated here.