Downtime Cost Calculator – Revenue Loss per Hour
Calculate the financial cost of server or application downtime.
About This Calculator
Calculate the financial cost of server or application downtime. Use the calculator above for instant results.
Worked Examples
- $10M/2080 = $4,808/hr × 4 hrs = $19,231 lost
Answer: $19,231 cost
- $100M/8760 = $11,416/hr | $11,416 per hour of downtime
Answer: $11,416/hour
- $1B/8760 = $114,155/hr | Major outages cost millions
Answer: $114,155/hour
Who Uses This Calculator?
Justify availability investments.
Understand downtime financial risk.
Prioritize reliability improvements.
Make case for redundancy investment.
Common Mistakes to Avoid
❌ Revenue loss is just direct cost
Add indirect costs: customer churn, reputation, SLA penalties, recovery labor, regulatory fines. True cost is typically 3-10× direct loss.
❌ 24/7 businesses use 8760 hours
For always-on services (ecommerce, SaaS), use 8,760 hours/year. For B2B business hours use 2,080.
Frequently Asked Questions
Gartner downtime cost estimate?
Gartner estimates average IT downtime cost at $5,600/minute ($336,000/hour). Varies hugely by business type and time of outage.
High-value downtime windows?
Black Friday, product launches, end-of-month/quarter. Schedule maintenance outside peak revenue windows.
Downtime cost by industry?
Financial services: $1M+/hour. Ecommerce: $100K+/hour. Healthcare: $636K/hour average (Ponemon study).