SLA Downtime Credit Calculator
Estimate the allowed downtime and potential service credit under a provider's SLA, given the uptime target and outage duration.
Check your provider's actual SLA document for this figure
Your results
Confirm the exact allowance, exclusions and credit formula against your provider's actual SLA contract.
Calculation breakdown
- Allowed downtime
- 30 days × 24 × 60 × (100 − target%) ÷ 100
- Breach
- actual downtime > allowed downtime
- Credit
- monthly fee × provider's credit rate (if breached)
Worked example
With a 99.9% SLA target, allowed downtime for a 30-day month is about 43 minutes; 60 minutes of actual downtime would breach the SLA.
Assumptions
- The credit percentage is entirely provider-specific and must be taken from your actual contract, not assumed.
- Uses a flat 30-day month for simplicity; some SLAs use the actual days in the billing period.
How this calculator works
Compare an actual outage duration against an SLA's uptime target to see whether the target was breached and estimate a service credit using your provider's stated credit percentage — always confirm against the actual contract.
Frequently asked questions
Is the credit percentage a standard rate?
No, service credit percentages are set entirely by each provider's contract and vary widely, so enter your own provider's stated rate.
How is a breach determined?
A breach occurs when actual downtime in the billing period exceeds the allowance implied by the SLA's uptime percentage.
Does this replace reading the SLA contract?
No, this gives a quick estimate only; always check the exact wording, exclusions and claim process in your provider's SLA.