SLA & Uptime Calculator
How much downtime corresponds to your SLA?
SLA level of 99.9 % uptime results in the following periods of allowed downtime:
| Daily | 1m 26s |
| Weekly | 10m 4.8s |
| Monthly | 43m 50s |
| Quarterly | 2h 11m 29s |
| Yearly | 8h 45m 57s |
Direct link to the page with these results:
uptime.is/99.9 (or uptime.is/three-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.