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Uptime / SLA Downtime Calculator

Calculate the maximum allowed downtime for any SLA percentage.

Allowed downtime
Comparison table
SLAPer dayPer monthPer year

How to use

Enter an SLA percentage like 99.9 or click a preset for the common tiers. The first table shows the maximum allowed downtime per day, week, month, quarter, and year. The comparison table shows all common tiers side-by-side so you can see the practical difference between three nines and five nines.

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