Uptime SLA Downtime Calculator

Convert an uptime SLA percentage into allowed downtime over a selected period.

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Allowed downtime -
Required uptime -
Period -
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Enter the example value or paste your own input, choose the mode when one is available, and read the first result card for the direct answer. The output area gives a copyable block for code reviews, documentation, API tests, classwork or troubleshooting notes.

What the result means

The calculation turns a percentage target into minutes or hours of downtime allowed during the period.

What is not included

SLA contracts can define exclusions and measurement windows differently. This is the raw time conversion.

Privacy note

The calculation runs in your browser. Avoid pasting production secrets, credentials, private keys, customer data or regulated personal data unless your own policy allows browser-based tools.