Cloud Migration Savings Calculator

See current costs, target spend, and migration impact. Measure break-even timing, ROI, and savings trends. Plan cloud transitions using clearer numbers, assumptions, and scenarios.

Calculator Inputs

Currency Symbol

Currency Code

Analysis Years

Current On-Prem Annual Costs

Infrastructure / Hardware Cost

Software / License Cost

Operations Labor Cost

Downtime / Incident Cost

Support / Maintenance Cost

Datacenter / Facilities Cost

Target Cloud Annual Costs

Cloud Compute Cost

Cloud Storage Cost

Network / Egress Cost

Managed Services Cost

Cloud Operations Labor Cost

Residual License Cost

One-Time Migration Costs and Benefits

Migration Project Cost

Training / Change Cost

Dual-Run Transition Cost

Avoided Hardware Refresh Benefit

Planning Assumptions

Optimization Savings (%)

Downtime Reduction (%)

Annual Cost Growth (%)

Discount Rate (%)

Example Data Table

Input	Example Value	Meaning
Current Infrastructure	$120,000	Servers, hardware refresh, and related platform costs.
Current Licenses	$30,000	Annual software and platform subscriptions.
Current Ops Labor	$50,000	Admin, patching, backup, and support labor.
Current Downtime Cost	$20,000	Lost productivity and outage impact.
Cloud Compute	$70,000	Projected yearly compute charges.
Cloud Storage	$15,000	Object, block, or archive storage spend.
Cloud Network	$12,000	Bandwidth, transfer, and egress charges.
Migration Project Cost	$95,000	Assessment, tooling, labor, and cutover effort.
Optimization Savings	12%	Expected savings after right-sizing and cleanup.
Analysis Period	5 Years	Period used for payback, NPV, and ROI.

Formula Used

Current Annual TCO = Infrastructure + Licenses + Ops Labor + Downtime + Support + Datacenter

Cloud Platform After Optimization = (Compute + Storage + Network + Managed Services) × (1 − Optimization %)

Target Downtime Cost = Current Downtime × (1 − Downtime Reduction %)

Target Annual Run Rate = Optimized Cloud Platform + Cloud Ops Labor + Residual Licenses + Target Downtime Cost

Annual Savings = Current Annual TCO − Target Annual Run Rate

Net Upfront Investment = Migration Project + Training + Dual-Run − Avoided Refresh Benefit

Year n Net Savings = (Current Annual TCO × Growth Multiplier) − (Target Annual Run Rate × Growth Multiplier)

NPV = − Net Upfront Investment + Sum of discounted yearly savings

ROI = ((Total Undiscounted Benefits − Net Upfront Investment) ÷ Net Upfront Investment) × 100

This model applies the same annual growth rate to both current and target operating costs. Adjust inputs to reflect your own planning assumptions.

How to Use This Calculator

Enter your current annual on-prem costs, including hardware, licenses, labor, downtime, support, and facility spend.
Enter projected cloud costs for compute, storage, networking, managed services, and cloud operations labor.
Add one-time migration costs, transition costs, and any avoided refresh benefit.
Set optimization savings, expected downtime reduction, growth rate, discount rate, and analysis period.
Click Calculate Savings to view results above the form, including ROI, payback, NPV, and yearly cash flow.
Use the export buttons to save a CSV summary or a PDF copy of the results section.

FAQs

1. What does this calculator estimate?

It estimates the financial effect of moving workloads from an on-prem or legacy setup to cloud infrastructure. It compares current annual cost, target run rate, upfront migration cost, payback period, multi-year savings, ROI, and NPV.

2. Is downtime reduction included?

Yes. The calculator reduces current downtime cost by your selected downtime improvement percentage. That lower value is added to the target cloud run rate, helping model reliability gains after migration.

3. What is optimization savings?

Optimization savings represents cost reductions from rightsizing, reserved pricing, storage tiering, cleanup, and better utilization. It is applied to cloud platform spend before adding cloud labor, residual licensing, and downtime cost.

4. What does payback period mean here?

Payback period is the estimated number of months needed for cumulative yearly savings to recover the net upfront migration investment. If the horizon never turns positive, the calculator reports no payback within the selected period.

5. Why use NPV and discount rate?

NPV discounts future savings to present value, making different-year cash flows more comparable. A higher discount rate reduces the value of later savings and gives a stricter view of financial attractiveness.

6. Can I use this for partial migrations?

Yes. Enter only the costs, benefits, and run rates linked to the workloads you expect to move. The model works for a full migration, phased rollout, pilot group, or a single application portfolio.

7. Does this replace a detailed business case?

No. It is a planning calculator, not a full finance model. Use it for quick scenario comparison, then validate assumptions with architecture, procurement, security, and finance stakeholders before approval.

8. What should I do if savings look negative?

Review cloud compute, network, and managed service assumptions first. Then test better optimization rates, lower dual-run periods, stronger downtime reduction, and realistic avoided refresh benefits to see which levers improve the case.