Downtime Cost Calculator
What an hour offline costs you.
SLA penalties, churn, refunds
Result
Revenue lost£416.67
Plus reputational£83.33
Total cost£500.00
Cost per hour£250.00
Downtime Cost Calculator — FAQs
Average downtime cost?
Gartner's oft-cited figure is ~$5,600/minute for large enterprises; for SMEs, revenue/hour × hours + ~20% for refunds and lost trust is a fair proxy.
What is an SLA?
Service level agreement — uptime commitments (99.9% = ~8.8h downtime/yr) often with credits. 'Five nines' (99.999%) allows just 5 minutes/year.
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