Azure - Free tool
Azure Reservation ROI calculator
Plug in pay-as-you-go spend on a VM family, pick the term and payment option, and see what an Azure Reservation returns. Defaults reflect typical Azure list prices. Override any field if you have an EA or CSP quote.
Result
Adjust the inputs on the left to see your projected savings.
Monthly savings
$0
Effective discount applied
0%
Total commitment
$0
Up Front payment
$0
Net savings over term
$0
Break-even month
Month 1
How the math works
Eligible monthly spend is the PAYG spend on the targeted VM family times coverage. Uncovered spend stays at PAYG rates.
Total commitment is discounted eligible spend times 12 or 36 months. Azure Up Front pays the full commitment immediately. Monthly spreads it evenly across the term.
VM Reservations lock a VM size, region, and OS for a higher discount. Compute Savings Plans trade some discount for flexibility.
Math looks right. Now check your account for unused Reservations, expired Reservations that converted to PAYG, VMs outside the reserved size, and Hybrid Benefit attribution. Cloud Horizons scans all of it inside the free 14-day audit.
Frequently asked
Reservations vs Compute Savings Plans?
Reservations lock a specific VM size, region, and OS for 1 or 3 years and save up to about 72%. Savings Plans apply across VM sizes inside a chosen scope and trade some discount for flexibility. Stable workloads win with Reservations. Variable compute fleets win with Savings Plans.
Up Front or Monthly?
Azure quotes the same total either way. Pick Monthly for cash flow. Pick Up Front when finance prefers a single line item or your CSP has a small prepay incentive.
Does Hybrid Benefit stack?
Yes. Azure Hybrid Benefit for Windows Server and SQL Server reduces the per-VM rate further. The calculator does not factor AHB in by default. Override the discount field with the AHB-adjusted rate from the Azure pricing calculator if it applies.
What if my MCA discount is higher?
Microsoft Customer Agreement and Enterprise Agreement customers often see additional negotiated discounts. Override the discount field with the figure the Azure portal shows for your tenant.
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After the math
Check the subscription before you buy commitment.
The calculator models one Reservation. Cloud Horizons checks the real account for unused Reservations, expired commitments, SKU drift, and Hybrid Benefit attribution gaps.