About Uptime Calculator

If you ever tried to purchase hosting, you most definitely have been subject to plenty of uptime promises. Providers guarantee various uptimes which are supposed to make you think they are very reliable - be it 99.9%, 99.99% or something entirely different. By using this calculator you will be able to see how often can your website be down.

In the box below, write down the percentage you have been promised, and uptime calculator will do the rest. For example, "99,9% uptime" effectively means your server can be down for more than 43 minutes a month! Play around with our uptime calculator tool and see for yourself.