What Does One Hour of
IT Downtime Really Cost?

When an IT outage happens, the CEO usually thinks: “Okay, a few hours of nothing to do, annoying but survivable.” Reality looks different. Studies show that mid-sized companies in Germany lose nearly €400,000 per yearfrom unplanned IT outages — spread across an average of four incidents with roughly 3.8 hours of recovery time each (source: HP study / CIO.de).

The problem: these costs never appear as a single line item in any accounting system. They are distributed across productivity losses, rework, external service providers, lost orders, and disrupted customer relationships. At the end of the year, the CEO asks: “Why did we make so little profit?” — and the answer rarely appears under a line item called “IT outages.”

The numbers in context

For companies with fewer than 500 employees, the HP study calculates an average outage cost of roughly €20,000 per hour. For larger firms (>1,000 employees), it goes up to €40,000. For small SMBs with 25-50 employees, the figure is lower but still in the range of €5,000-10,000 per hour when all factors are included.

That sounds high — until you do the math honestly. That is exactly what the interactive calculator below does.

Why SMBs massively underestimate the costs

Most CEOs have no intuition for what an outage really costs. The reason: the costs are distributed. Nobody sends you an invoice for “€18,000 IT outage on March 15.” Instead, the damage spreads across dozens of small items:

• Employees waiting three hours for a new server — salaries keep running
• An external IT provider called in on an emergency basis — hourly rate €180 and up
• An important meeting that needs to be rescheduled — opportunity costs unclear
• Rework the team has to do evenings or weekends — overtime or lost work-life balance
• Customers who hung up in frustration — maybe they come back, maybe not

In the end, it looks like “nothing happened.” But the damage is there. It just does not appear in the balance sheet under a single line item.

The HP study in numbers

According to the HP study for mid-sized German companies:

• 4 incidents per year on average
• 3.8 hours average recovery time per incident
• ~14 hours total downtime per year
• ~€380,000 average annual damage
• 50% of affected companies report reputation damage

These are averages. Those who have never had a major outage like to question the numbers — until the first incident hits and the bill suddenly matches.

Conclusion: Prevention is cheaper than an incident

A fully managed workplace with proactive monitoring, backup, and patch management typically costs mid-sized companies between €60 and €220 per user per month. For 25 employees, that is between €1,500 and €5,500 monthly.

A single avoided 8-hour outage at medium IT dependency pays back these costs for 3-6 months. With two or three avoided incidents per year, the ROI is clear — and we are not even talking about hidden costs like reputation or trust loss.

The question is not whether you can afford to invest in prevention. The question is whether you can afford not to.

As a Managed Service Provider, we handle exactly this work: monitoring, patching, backup management, incident response. You pay a predictable flat rate — and get a team that spots problems before they become outages.