Free tool

SLA uptime and downtime calculator

SLA calculator - SLA & Downtime calculator

What is uptime?

Uptime is the amount of time that a service is available and operational, typically expressed in percentage.

What is SLA?

A service-level agreement (SLA) defines the level of service you expect from a vendor, laying out the metrics by which service is measured, as well as remedies or penalties should agreed-on service levels not be achieved.

How to prevent downtime?

Redundancy, monitoring and alerting are key to ensure a safe and reliable service.

Percentiles matter.

99.9% uptime equals to a period of downtime of 1 minute and 26 seconds per day.

99.99% uptime equals to a period of downtime of less than 9 seconds per day.

99.999% uptime equals to a period of downtime of less than 1 second per day.

What is the uptime percentage?
Weekly5m 2s
Monthly21m 36s
Quarterly1h 26m 24s
Yearly4h 22m 48s
Prevent Downtime with Our Uptime Monitoring Software
Don't just calculate your downtime, prevent it with our uptime monitoring tool and keep your business running smoothly.

Get SLA reports and instant alerts via your preferred channels such as Slack, Teams or SMS.