Networking & IT ToolsPrivate by design
Network Uptime SLA Calculator
Enter an uptime percentage (like the classic 99.9%) to see how much downtime that allows per year, month, week, and day.
How to use this tool
- 1Enter an uptime percentage.
- 2See the equivalent allowed downtime over different periods.
Frequently asked questions
What does '99.9% uptime' actually mean in practice?+
99.9% ('three nines') allows about 8.76 hours of downtime per year — each additional nine cuts the allowed downtime by roughly a factor of ten.
Related tools
Keep the boring tools boring.
If this saved you five minutes of nonsense, you can help keep the free tools running.
Buy the toolbox a coffee