Cloud vs Colocation vs On-Prem TCO Calculator

How the TCO calculator works

The tool models three deployment approaches side by side. They are cloud, colocation and on-premises. For each one you enter an upfront one-time cost and the monthly recurring cost, broken into the categories that make up a real bill.

You then pick a horizon of 12, 36 or 60 months. The calculator totals each approach across that period, ranks them by total cost of ownership and names the lowest along with the gap to the next.

It also builds a lowest-cost timeline. Rather than reporting every pairwise intersection, it identifies which approach is cheapest through each part of the selected period and reports when that leader changes.

Fill in only the lines that apply. A blank field counts as zero, and an approach with no costs is left out of the comparison.

The formula behind the comparison

Total cost of ownership here is deliberately simple. For each approach it is the sum of every one-time cost plus the sum of every monthly cost multiplied by the months in your horizon.

Ranking is just those totals sorted from lowest to highest, with totals that are equal to the cent treated as a tie. The lowest total at your chosen horizon is the headline result.

The crossover comes from where two cost lines meet. One approach may have a lower upfront cost but higher monthly spending, while another may have a higher upfront cost and lower recurring spending, so their cost lines can cross.

The calculator finds which approach is cheapest through each part of the timeline and reports the month the leader changes.

What each cost category means

The three approaches use comparable cost categories so the scenarios can be judged on a like-for-like basis. Loading one approach with costs the others do not carry would tilt the result before you started.

Upfront covers one-time spend. For cloud that is mainly migration and onboarding. For colocation and on-premises it is hardware purchase plus installation or facility buildout, with an “other upfront” line for anything that does not fit.

Monthly covers the recurring bill. Cloud carries compute, storage, network and egress, plus provider support. Colocation carries rack space and power, bandwidth and cross-connects, remote hands and hardware maintenance. On-premises carries power and cooling, connectivity and hardware maintenance.

Three monthly lines appear across all three approaches. They are software and licensing; internal staff and administration; and backup, security and monitoring.

These costs can apply whether you rent or own, so enter them everywhere they belong.

For a fair result, size every approach to the same workload, capacity, performance, availability, support and redundancy. The cheapest scenario is only meaningful if all three describe the same job.

How to read your results

The ranking shows each approach with its upfront cost, its monthly cost and its total over the horizon. The lowest total carries a clear label, and genuine ties share the top rank rather than one being crowned at random.

The timeline reads underneath. It names which approach is cheapest during the opening part of the period, the month each lead change happens and which approaches never become cheapest during your window.

That timeline is the important part. A high upfront cost can look expensive at 12 months and become the cheapest option by 60, so the horizon you choose changes the answer.

Read the result as a planning estimate, not a verdict. It assumes your monthly costs stay flat and excludes taxes, financing, inflation, depreciation, residual hardware value and workload growth. The lowest estimated cost is not automatically the best operational choice.

Why cloud, colocation and on-premises cost differently

Cloud generally shifts a larger share of infrastructure spending into recurring service charges. It may reduce the initial hardware investment, but migration, onboarding, support, software, staffing and other upfront or recurring costs can still apply.

Its flexibility can be useful for temporary, variable or difficult-to-predict workloads.

Colocation and on-premises usually require more initial spending on hardware and deployment. They can become cost-effective for steady, well-utilized workloads, but they continue to carry costs for power, space or facilities, connectivity, maintenance, software, staffing and security.

Placing workloads by cost, performance and compliance, with variable demand in public cloud and predictable demand on owned infrastructure, is a common pattern rather than a fixed rule.

Cloud repatriation means moving some or all applications, data or workloads from public cloud infrastructure to colocation, private cloud or on-premises infrastructure. Cost can be a reason, but performance, compliance, security and control requirements may also influence the decision.

The crossover in this calculator is the cost side of that decision. It shows whether colocation or on-premises becomes the lowest-cost option during your period.

A pairwise cloud crossover does not necessarily change the overall leader, because the third approach may still have a lower total cost. Enter honest costs for all three to see that timing for your own workload.

Where this calculator fits

This tool compares deployment models, but the monthly figures you feed it come from more specific decisions. The calculators below help you pin those numbers down before you model the full total cost of ownership.

For cloud spend, use the cloud hosting cost calculator. For a single server or a growing rack, price it with the colocation cost calculator. For general hosting spend across plan types, start with our web hosting cost calculator.

To size a growing site onto a virtual private server, use the VPS cost calculator, and to choose a tier in the first place, work through the shared vs VPS vs dedicated comparison.

If you resell hosting, model your margins with the reseller hosting profit calculator.

Once you have a total cost, judge whether the project earns its keep with the website ROI calculator, and browse the full set from all our hosting calculators.

For background on the numbers themselves, see our research on cloud hosting cost and dedicated server cost, plus our data center energy statistics for the power side of an owned footprint.

Frequently asked questions

How much does colocation cost?

Enter your own quotes whenever you have them, because colocation pricing swings hard by market, density and term. As a reference point, a single colocated server commonly runs between $79 and $599 per month once space, power and bandwidth are included.

A standard full rack drawing 3 to 5 kW tends to land around $900 to $2,500 per month all-in at a Tier 3 facility.

Larger wholesale deployments are often priced by committed power rather than by rack.

Deployments of 250 to 500 kW in primary North American markets were approaching an indicative asking rate of about $196 per kW per month in the second half of 2025, although individual agreements vary by market, facility, term and negotiation.

In many primary colocation markets, committed power capacity now has more influence on pricing than physical floor space, so estimate wattage and redundancy requirements carefully before comparing quotes.

What does the calculator leave out?

It uses only the costs you enter and assumes each monthly figure stays constant across the period. It does not model cost growth, workload growth, inflation, cloud commitments or negotiated discounts, financing, taxes, depreciation or residual hardware value.

Hardware replacement is included only if you enter it, so for a 60-month view add a monthly amount for refresh where it applies. Treat the output as a planning model for comparing scenarios, not a quote or a guarantee.

What is cloud repatriation?

Cloud repatriation is moving some or all applications, data or workloads out of public cloud and back into colocation, private cloud or on-premises infrastructure. It can be selective rather than a full exit, with variable workloads staying in the cloud and steadier ones moving.

Cost is a common driver, but performance, compliance, security and control can matter too. Pay-as-you-go pricing can suit bursty demand, while persistent usage and data-egress charges can make steady workloads more expensive.

When does owning beat renting?

Colocation or on-premises is the lowest-cost approach within your selected horizon if it leads during the opening part of the period or becomes the leader after a crossover.

A later lead change generally happens sooner when the upfront investment is small relative to the difference between the owning option’s monthly cost and the cloud monthly cost.

A pairwise crossover does not change the overall leader if the third approach remains cheaper than both.

Utilization is one of the most important factors. Steady workloads running near full use tend to favor owning, while workloads that sit idle much of the time or spike unpredictably tend to favor cloud.

Which approach is cheapest overall?

There is no universal answer, which is why the tool asks for your figures rather than assuming averages. The cheapest approach depends on your upfront costs, your monthly costs and the horizon you are planning for.

Sources and additional resources

• Encor Advisors. “Data Center Colocation Pricing: 2026 Cost Per Rack and kW.” Encor Advisors.
• ServerMania. “2026 Colocation Costs and Pricing Overview.” ServerMania Knowledge Base.
• IBM. “What Is Hybrid Cloud?.” IBM Think.
• Hewlett Packard Enterprise. “What Is Cloud Repatriation?.” HPE.