Error Budget Calculator
Brought to you by the developers at Stytch
Error Budget Calculator
%
Total Error Budget:0.0 sec
Error Impact:0.0 sec
Remaining Budget:0.0 sec
Budget Used:0%
How to Use This Calculator
- •Error Duration: Length of the outage or error period in minutes
- •% Requests Failing: Percentage of requests that failed during the error period
- •Uptime Window: The time period to measure availability against (e.g., 30 days = 43,200 minutes)
- •SLA/Desired Uptime: Your target uptime percentage (e.g., 99.9%)
The calculator uses the formula:
(error duration × % failing) ÷ (uptime window
× (1 - desired uptime))
× (1 - desired uptime))
Common SLA Tiers & Downtime
| SLA | Downtime per Year | Downtime per Month |
|---|---|---|
| 99% | 3.65 days | 7.30 hours |
| 99.9% | 8.76 hours | 43.80 minutes |
| 99.95% | 4.38 hours | 21.90 minutes |
| 99.99%(current) | 52.56 minutes | 4.38 minutes |
| 99.999% | 5.26 minutes | 26.3 seconds |