Website downtime cost calculator
Estimate the revenue you lose when your website goes down, based on how much it earns and how long it's offline.
What the outage costs
Assumes revenue is spread evenly across trading hours. Excludes reputation and SEO damage, which can outlast the outage itself.
Indicative estimate based on your inputs. Real losses depend on when the outage happens and how much traffic you lose for good.
How much does website downtime really cost?
When your website is offline, every hour of downtime is revenue you can't recover. This calculator turns your monthly online revenue into a per-hour trading figure, then multiplies it by the hours you were down to give a plain estimate of lost sales.
The result depends on how many hours a day your site actually trades. A 24/7 store spreads revenue across all 24 hours, while a site that mostly sells during business hours concentrates the same revenue into a shorter window, raising the cost of each hour lost. Use it to justify better hosting, monitoring, or a more resilient build.
We divide your monthly online revenue by 30 days and by the number of trading hours per day to get revenue per trading hour, then multiply that by your hours of downtime. It assumes revenue is spread evenly across your trading hours.
Build a website that stays up
Downtime is far cheaper to prevent than to absorb. web1o builds fast, resilient websites with monitoring baked in, so an outage never quietly drains your revenue.