10-minute outage
"It was only ten minutes" still has a number.
Short outages get waved off in post-incident review. A ten-minute outage is still ten times the per-minute rate — model it below with your fleet size, revenue impact, incident frequency, and SLA target.
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Reality check
Short outages compound quietly.
A single ten-minute outage looks trivial in isolation. The math changes once you multiply by how often it happens — a brief but frequent blip can cost more per year than one long, memorable incident.
Ten-minute cost
Cost per minute multiplied by 10 — the direct loss for one short incident, before hidden tax.
Frequency multiplier
The same ten-minute event at 14 times a year costs roughly 14 times as much as it does once — frequency, not just duration, drives the annual number.
Detection floor
Ten minutes is close to the practical floor for many monitoring setups — meaning this is often the best-case outage length, not the worst case.
Post-incident bias
Short incidents are less likely to get a full retro, which means the fixes that would prevent recurrence are also less likely to happen.
FAQ
Cost of a 10-minute outage, answered.
Questions that come up when someone says a short outage "doesn't really count."
How do I calculate the cost of a 10-minute outage?
Calculate the cost per hour, divide by 6 (or use the cost per minute calculator and multiply by 10).
Is a 10-minute outage worth a full incident review?
If it recurs, yes. A short outage that happens 14 times a year at the same rate costs the same as one 140-minute outage — frequency is the multiplier that makes brief incidents worth reviewing.
Does SLA budget even notice a 10-minute outage?
For a 99.9% SLA, the annual budget is about 8.76 hours (525 minutes) — a single 10-minute outage uses roughly 2% of that budget. It adds up fast at higher frequency.
How does this compare to longer outages?
See cost per hour, cost per day, or the full annual model.
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