What does downtime really cost you?

Direct costs and hidden costs

A realistic cost of IT downtime has two layers. The calculator counts the first: people who can't work and revenue you can't earn while systems are down. The second layer arrives later, on different invoices, and is easy to miss.

Hidden costs vary most by industry. A Sorrento Valley lab may lose samples or instrument time, a manufacturer near Otay Mesa may miss a cross-border shipment window, and a law firm may miss a filing deadline. Add the rows that apply to you as a separate line next to the calculator's result.

How to estimate each input honestly

Optimistic inputs produce a comfortable number that nobody acts on, and pessimistic ones get dismissed. Aim for numbers you could defend to your finance lead.

• Employees affected. Count the people who actually stop or slow down, not total headcount. An email outage and a failed line-of-business server affect different groups, so estimate each scenario separately.
• Average hourly cost per employee. Use wages plus benefits and payroll taxes, often called the fully loaded cost. Payroll or your accountant can supply an average; don't use revenue per employee here.
• Hours of downtime per year. Start from your own history: helpdesk tickets, internet provider outages, power cuts and the afternoons nobody could reach shared files. Include partial outages, such as unusable Wi-Fi, at a lower productivity figure.
• Productivity lost. Few outages stop everything, because staff can often keep working on phones or offline documents. A dental practice without its imaging and practice management systems, however, comes close to a full stop.
• Revenue at risk per hour. Divide revenue by operating hours as a starting point, then subtract what is merely delayed, such as invoices that still get paid next week. Keep what is truly lost, such as missed appointments or orders that go elsewhere.

What RTO and RPO mean for your number

Two recovery targets shape the size of any outage. Your recovery time objective (RTO) is how quickly a system must be back. Your recovery point objective (RPO) sets how far back a restore may land, and therefore how much recent work you could lose.

A target only counts if it has been tested. If backups run nightly, a failure late in the afternoon can mean a full day of work to recreate, no matter how quickly the server comes back. And if nobody has timed a full restore, your real RTO is unknown.

Set targets by tier, not one number for everything

• Tier 1: stop-the-business systems. Practice management, ERP, email and the file shares people use all day. These justify the shortest targets and the most frequent testing.
• Tier 2: important but deferrable. Accounting, HR and reporting tools that can wait a few hours while staff use workarounds.
• Tier 3: archives and reference data. Old project files and records people rarely open, where a longer RTO is a fair trade for lower cost.

We document RTO and RPO for each key system as part of a business impact analysis, then prove them in quarterly restore drills. Our typical RTO is under 4 hours.

What actually reduces downtime

Each measure below shrinks a different input in the calculator. Monitoring and fast response cut the hours, redundancy keeps one failure from stopping everyone, and tested backups limit both downtime and lost work.

• Monitoring that acts early. Full disks, failing drives, expiring certificates and stalled backup jobs all give warning signs. 24/7 monitoring and alerting turns those signs into fixes before users notice.
• Redundancy where it pays. A second internet connection with automatic failover, battery backup for network equipment and spares for critical hardware keep one failure from stopping the office. The network and server designs we build target 99.99% uptime.
• Backups built for fast restores. Immutable, off-site copies protect against ransomware, and rehearsed restores make recovery routine rather than improvised. See how backups and business continuity fit together.
• Response that starts in minutes. When the outage is a security incident, speed limits the spread. Our 24/7 SOC has an average first response under 15 minutes and triggers a containment playbook within the first hour of a ransomware or breach event.
• Cloud and remote readiness. When staff can reach email and files from home, a building problem doesn't have to become a business outage. That matters for the many hybrid teams across San Diego County.

San Diego disruption risks to plan for

Plenty of downtime has ordinary causes: a failed switch, a bad update, a cut fiber line or an accidental deletion. San Diego adds a few regional risks worth building into your worst-case scenario.

Count these in the hours input, especially if an office or key site sits in an area that has seen shutoffs before. Signing up for SDG&E outage notifications for each site address is a simple first step.

Turn the estimate into a budget conversation

A cost of IT downtime estimate is most useful when it sits next to the cost of preventing it. Leadership teams can weigh a known monthly investment against an estimated annual risk; they can't weigh a vague worry.

1. Agree on the inputs

   Review the five inputs with finance and operations so everyone trusts the starting point.

2. Add the hidden costs

   List the rows from the table above that apply to you, with a rough figure or a range for each.

3. Price the fixes

   Get costs for the measures that shrink your biggest inputs, such as a second internet line, battery backup, tested backups or 24/7 monitoring.

4. Choose the targets you will fund

   Decide which systems need a short RTO and RPO, and accept longer targets for the rest.

5. Revisit every year

   Update the estimate when headcount, revenue or key systems change, and after any real outage.

If you're weighing support models, our managed IT vs break-fix guide shows how to compare their true costs, and our IT strategy and vCIO service builds these numbers into a roadmap and budget reviewed every quarter. Or start with a free 30-minute assessment.