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Uptime and downtime with 99 % SLA

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SLA & Uptime Calculator

How much downtime corresponds to your SLA?

%
(enter SLA level and hit the <enter> key)

SLA level of 99 % uptime results in the following periods of allowed downtime:

Daily 14m 24s
Weekly 1h 40m 48s
Monthly 7h 18m 17s
Quarterly 21h 54m 52s
Yearly 3d 15h 39m 30s

Direct link to the page with these results: uptime.is/99 (or uptime.is/two-nines)

The SLA calculations assume a requirement of continuous uptime (i.e. 24/7 all year long) with additional approximations as described in the source. uptime.is was originally implemented in newLISP, which had powered uptime and downtime calculations for more than a decade.

For convenience, there are special CEO and SEO friendly links for N nines: three nines, four nines, five nines, six nines etc.