SLA calculator
Allowed downtime per period
Type your target uptime percentage. The table updates with the maximum acceptable outage time across common reporting windows.
%
Example: three nines → , five nines →
| Period | Maximum downtime |
|---|---|
| Daily | — |
| Weekly | — |
| Monthly (avg. month) | — |
| Quarterly | — |
| Yearly | — |
How the SLA calculator works
- Calculation method
- The calculator converts an uptime target into an allowed downtime budget: period length × (100% − uptime). A day is 86,400 seconds, a week is 7 days, a month is the average Gregorian month (365.25 ÷ 12 days), and a quarter is one fourth of a 365.25-day year.
- SLA contract notes
- Real SLA terms may define a different reporting window, such as a calendar month, rolling 30 days, or a billing period. Use this as a quick technical estimate, then check your agreement for exclusions, maintenance windows, service credits, and how partial incidents are counted.
- Who we are
- We are Alex and Max, the makers of Jitbit Helpdesk. We build support software where uptime, response times, and service level agreements are part of day-to-day operations.