Uptime SLA Calculator
Convert uptime targets into allowed downtime and calculate real availability from incident minutes across monthly, quarterly, or yearly periods.
Allowed downtime
99.9% over 30 days
Actual uptime
30.0 minutes downtime
Monthly equivalent
Normalized to 30 days
SLA status
Actual downtime is inside allowance
Free Uptime SLA Calculator
Uptime targets are easier to understand when they are converted into minutes of downtime. This calculator helps hosting teams, SaaS founders, and website owners compare promised SLA numbers with real outages.
Why uptime belongs next to analytics
A traffic drop is not always a marketing problem. Outages, partial downtime, DNS failures, and certificate issues can all reduce visits and conversions before a campaign has a chance to work.
Common SLA targets
99% uptime allows much more downtime than 99.9%, and 99.99% is a different operating discipline again. Use the calculator to translate each target into monthly minutes.
Frequently Asked Questions
How do you calculate uptime percentage?
Uptime percentage is calculated as available minutes divided by total minutes in the period, multiplied by 100.
How much downtime does 99.9% uptime allow?
In a 30 day month, 99.9% uptime allows about 43.2 minutes of downtime.
What is the difference between uptime and availability?
They are often used together. Uptime usually refers to whether the service is reachable, while availability can include whether critical functions are working correctly.
Can downtime affect SEO?
Short outages usually have limited SEO impact, but repeated or extended downtime can affect crawling, user signals, and revenue.
Can Swetrix help explain traffic drops?
Yes. Swetrix combines traffic, performance, errors, and alerts so you can connect reliability issues with user behavior.
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