Carmedin
Free ToolLIVE
Uptime Allowance
Calculator.
See exactly how much downtime a given uptime percentage actually allows — per day, week, month, and year. Runs entirely in your browser.
%Uptime target
⏱Downtime allowance
⌁Client-side only
Translate uptime into downtime
Simple percentage allowance · no server calls
%
Uptime TargetEnter any value from 0 to 100
Enter a value between 0 and 100.
Calculated entirely in your browser. Nothing is sent to any server.
⏱
Allowed DowntimePer day, week, month & year
Reference
Common Uptime Tiers
The familiar “nines” naming convention, and how much downtime each target allows per year.
99%
“Two nines”
Simple annual availability target.
3.65 days/year99.9%
“Three nines”
Common production-service target.
8.76 hours/year99.99%
“Four nines”
High availability with little room for outages.
52.56 minutes/year99.999%
“Five nines”
Extremely tight annual downtime allowance.
5.26 minutes/yearNeed more than a number on a page?
We build the infrastructure behind the uptime.
Uptime targets only mean something with the right infrastructure, monitoring, redundancy, and support behind them. That's what we do.