Calculator

Technical Debt Cost Calculator

Size what aging infrastructure is costing you today — before a failure forces the bill due all at once.

Technical debt is invisible until it isn't. Aging servers, unsupported operating systems, and machines two years past their prime quietly cost you in lost productivity, surprise downtime, and rising support — until a failure forces the bill due all at once. We've spent 25 years modernizing infrastructure; here's a transparent way to size what yours is costing you today.

Total workstations

Workstations 4+ years old

Total servers

Servers past warranty / 5+ years

Systems on unsupported OS (e.g., end-of-life)

Business-critical legacy apps

Average fully-loaded hourly wage ($)

Backups tested in last 90 days?

Environment documented?

Advanced assumptions

[LANStatus estimate] Directional figures based on typical mid-market environments and 25 years of field experience — not published benchmarks. Adjust any constant to your reality.

Productivity hours lost per aging workstation / yr

~10 minutes/day of slowness/quirks beyond lifecycle (default 40 hrs/yr).

Annual failure probability (out-of-warranty server)

Modeling band 10–20%; default 15%.

Expected cost per unplanned server failure ($)

Plausible band $10k–$25k (hardware + labor + downtime).

Extra annual maintenance per legacy app ($)

Extra support + integration + risk premium.

Extra support + risk per end-of-life system ($)

Directional; EOL systems carry unpatched risk.

Estimated annual cost of your technical debt

$59,500

Productivity drag (aging machines)$32,000

Expected downtime (aging servers)$4,500

Legacy & end-of-life maintenance$23,000

Technology debt grade

37/100 · High risk — aging systems are a failure waiting to happen.

Top recommendations

Refresh workstations 4+ years old — the productivity drag alone often pays for the upgrade. Learn more →
Retire or isolate end-of-life systems — they're unpatched and uninsurable. Learn more →
Test your backups — an untested backup is a guess, not a safety net. Learn more →

How this is calculated

[LANStatus estimate] Directional estimate using adjustable assumptions aligned to typical warranty and replacement cycles (4+ yr workstations, 5+ yr servers). Productivity drag = aging machines × lost hours/yr × loaded wage. Expected downtime = out-of-warranty servers × failure probability × cost per failure. Legacy maintenance = extra annual support for legacy apps and end-of-life systems. Tune any constant in the panel to match your environment.

Combine results across tools in the Business Impact Center.

Want a real technology roadmap that retires this debt on a schedule you can budget for? That's our vCIO and professional-services work.

Talk to our vCIO team

Technical debt isn't a line item on most balance sheets — but it shows up everywhere else: slower workstations, emergency server replacements, unsupported operating systems that can't be patched, and legacy applications that only one person still knows how to fix.

This calculator estimates three cost buckets: productivity drag from aging workstations, expected downtime from out-of-warranty servers, and the extra maintenance burden of legacy apps and end-of-life systems. It also produces a debt grade (A–F) based on the ratio of aging assets and basic operational hygiene (backup testing, documentation).

Every benchmark is adjustable — the goal is an honest figure you can take to leadership, not an inflated scare number. For the downtime side of the same equation, see our Cost of Downtime Calculator. For how we think about modernization over decades, read 25 years of LANStatus.