SLO Budget Calculator

v1.0.0

Error-budget burndown calculator — given SLO, traffic, and error rate, project budget left.

SLO target(%)

Rolling window(days)

Requests / second

Result

SLO:              99.9%
Error Budget:     0.1000%

Window: 30 days (43,200 min)
Total Requests:   2,592,000,000

Budget Downtime:  43.2 min  (0.72 hrs)
Budget/Day:       1.44 min/day
Budget Errors:    2,591,999 total requests

At 2x burn rate:  budget exhausted in 15.0 days
At 10x burn rate: budget exhausted in 3.0 days