Web Hosting Uptime Calculator

Find out exactly how much downtime you’re paying for: enter the percentage uptime below (or enter the amount of downtime you’ve experienced in the last 30 days).

Most Web Hosting companies offer an SLA (service level agreement) with a minimum uptime of 99.9%, however did you know, this equates to just over 43 minutes of website downtime each month. In our web hosting reviews we highlight who has the most and least downtime.

If you need a website monitoring service check these options.

How Does the Uptime SLA Calculator Work?

Simply enter the number of days, hours, minutes of seconds your website was down for last month and we’ll show you your uptime % which you can then verify against your uptime SLA.

Alternatively if you are looking at different web hosts you can enter the % uptime rate they advertise to see what that means in hours, minutes and seconds each month.